Grant crouched in the mud beside a downed service road and listened for the raptors he could not see. The two children crouched behind him, quiet the way he had taught them to be quiet. He was a paleontologist. He had spent thirty years digging up bones in Montana, and now he was three miles deep in a park where the bones walked, and the radio in his hand had been dead since the storm knocked out the fences. He had told the children this was an adventure. He said it again now, softer, so the boy would stop shaking. The girl watched Grant's face for the lie and did not find it, because Grant had made himself believe it too. That was the only trick he had left. Hammond had paid him to come here and look at miracles, and Grant had cried when he saw the first one alive, and the old man in the straw hat had cried with him. Grant had known then that taking the money was a mistake. He knew it better now. The goal was simple. Reach the visitor center before dark. Without a radio, without a signal, no one would come looking, and the raptors tested fences at night. Grant had written a paper years ago arguing they hunted in packs. Reviewers had called it speculation. None of them had called him this week. He pushed the children into a wall of broad, layered fronds beside the road and told them to stay low. Through the leaves he saw the shape of a maintenance jeep tipped in a ditch, one door open. He crawled to it. The dashboard radio was smashed. But under the passenger seat, wrapped in a grease rag, he found a flare gun and two shells. He checked the shells twice. Both dry. Grant brought the children out and walked them east along the ridge until the trees thinned and the roof of the visitor center showed through the canopy, still a mile off. He would not reach it before dark. He knew that now. He knelt in the grass, loaded one shell, and fired straight up. The flare climbed and burst orange above the trees. He loaded the second and held it. Someone at the center would see. Someone with a working radio, a woman he had worked beside in the dig sites, a mathematician who had warned them all before the fences failed. Someone was still alive in that building. He had to believe it. The girl tugged his sleeve and pointed back the way they had come. In the wet dirt of the service road, fresh tracks crossed their own. Three-toed. Deep. Spaced for a running stride. The flare had been seen. Grant put his hand on the boy's shoulder and started walking faster, not toward the center now but toward the nearest tree line, because the thing that had answered him was not coming from the visitor center.

Grant pushed the children into the ferns at the tree line and stopped. The flare had done its work and its damage. Something out there had answered it, and now Grant did not know where the answer was. The service road lay open behind them. The trees stood thick ahead. Between the two, a raptor was moving, and Grant could not hear it over his own breathing. He crouched and looked at the children. The boy's mouth hung open. The girl held something inside her jacket, one hand cupped under a small shape. A puppy. Grant had not seen her pick it up. It must have come from the wrecked jeep, or from a staff bungalow they had passed. The puppy squirmed. It made a thin sound, high and wet, the kind of sound a raptor's ear would catch a quarter mile off. "Give it here," Grant whispered. The girl shook her head. He did not have time to argue. He unzipped his own jacket and held it open. She slid the puppy inside against his shirt. The warmth stopped its crying at once. Grant zipped the jacket to his throat and felt the small heart drum against his ribs. He needed to know where the raptor was before he moved the children one more step. He looked up. The tropical canopy climbed above him in layers, broad fronds stacked on slim trunks, the highest crown maybe forty feet up. From the road he could see nothing. From up there he could see the grass move. He pointed at the boy and mouthed, stay. He pointed at the girl and mouthed the same. Then he set his boot on the lowest scar in the trunk and climbed. The bark tore his palms. Halfway up he stopped and made himself still and looked. The service road ran gray through the green. Fifty yards north, the ferns bent in a line against the wind, then bent again across the wind. Something was walking there, low, patient, quartering the ground where the flare had fallen. Grant watched until the line of bent ferns turned east, away from the children, away from the visitor center. Away from the path he needed. He counted to thirty. The ferns kept bending east. He climbed down. He put one hand on the boy's shoulder and one on the girl's and pointed west through the trunks, along a line the raptor was not walking. The puppy shifted against his chest and stayed quiet. Grant took the first step off the road and into the trees. The ground was soft and gave no sound. Behind him the service road emptied. Ahead, through a break in the fronds, the roof of the visitor center caught the last of the sun, and Grant started walking the children toward it.

. We walk away." She shook her head hard. He held her shoulder until she stopped Behind them, somewhere in the ferns, the quartering stopped. Grant heard it stop. He heard the weight of something turn and start moving toward the log. He pushed the children into a run. The trees broke ahead of them and the roof of the visitor center stood across a strip of cut grass, glass doors lit from inside, the painted sign above the entrance catching the last light. A woman in a pink shirt was already at the doors, pulling them open, waving them across. Behind her, in the lobby, a man with gray hair and a black jacket stood braced on a cane. Grant ran. The children ran with him. the puppy stopped crying.

The glass doors shut behind them and the noise of the island cut off. Grant stopped in the lobby and put his hand on the boy's shoulder. The girl still held the puppy tight against her chest. The woman in the pink shirt slid a bolt across the door. The gray-haired man leaned on his cane and watched Grant, not the door. Grant did not know either of them. He kept the children a step behind him. "Who are you," Grant said. It was not a question. The woman turned from the bolt. Up close he saw her face and knew her. Blonde hair pulled back, dirt on her collar, a cut above one eyebrow. Ellie Sattler. He had not seen her in this shirt, in this light, and for a second his brain had refused it. She said his name. She said the children's names. She said she had watched him cross the grass from the window and had counted three of them and run for the door. The man with the cane did not offer a name. He said one anyway. Malcolm. He said it flat, like a man handing over a receipt. His pant leg was cut open at the thigh and packed with a folded towel. Blood had come through the towel and dried. Grant looked at the leg and then at the cane and then at the door Malcolm was standing between him and. "He's with me," Ellie said. "He came in on the second tour car. The leg is from the fence, not from a bite. He has been helping me move furniture against the east doors for an hour." She pointed down a hall. Grant looked. A copier and two desks were shoved against a set of glass doors at the far end. The barricade was low. A raptor would come over it. Grant made the call. He crouched to the boy's height and told him Ellie was a friend, that the man with the cane was a friend too, and that they were going to help stack more things against the far doors. The girl set the puppy down on the tile. The puppy sat. Malcolm looked at the puppy and almost smiled and then did not. Ellie put a hand on the girl's back and steered her toward the desk chairs. Grant let her. He followed Malcolm down the hall to the east doors and saw what Ellie had not said from across the lobby. The lock plate on the doors was already scratched. Long, clean grooves at handle height. Not random. Tested. "They've been at this door," Grant said. "Twice since I've been standing here," Malcolm said. "They went away. I don't think they went far." Grant set his shoulder against the copier and pushed it tighter to the glass.

The copier slid another inch and stopped against the glass. Grant stepped back and looked at the barricade the way a man looks at a bridge he has to cross. Two desks. One copier. Three chairs stacked on top. The doors behind it were glass in an aluminum frame. He could see the dark grass outside and the shape of the tree line past it. Something was moving in the trees. Not fast. Testing. "This won't hold," Grant said. "Not for a real push. The frame will give before the glass does." Malcolm shifted his weight on the cane and did not argue. Grant turned and walked back down the hall. Ellie met him at the mouth of the lobby with the boy behind her. Grant kept his voice low. He said the barricade was a stall. He said they needed a room with one door and no windows, and they needed it before the raptors came back. Ellie nodded once. She said there was a control room off the rotunda. Steel door. Keypad lock. She had the code. Grant told her to take the children now. He told Malcolm to go with them and to keep the boy's hand in his. Malcolm looked at the leg, then at the boy, and took the boy's hand. They moved. Grant stayed at the mouth of the hall and watched the east doors and counted. He got to nineteen. The first raptor hit the glass at a full run. The frame jumped in the wall and the top chair fell off the stack. A second shape came in behind the first and struck the door lower down, at the lock plate, where the scratches already were. The aluminum bent. Grant saw the narrow snout push through the gap and the eye behind it fix on him. He turned and ran. He shouted Ellie's name once. He heard the copier go over behind him. He rounded the rotunda and saw the steel door standing open and Ellie in it and the girl's face at her hip. Grant went through. Malcolm shoved the door. The bolt threw. Something heavy hit the other side and the steel rang and held. Grant put his back against the wall and slid down it to the floor. The girl was crying without sound. The puppy was in her arms again. Ellie was already at a console, hitting keys, watching a screen come up. She said the phones were dead and the main power was on a timer. She said the timer ran out in forty minutes. Grant looked at the steel door. He looked at the vent in the ceiling above it. He started counting again.

Grant pushed himself up off the floor. The steel door held, but the timer on the console kept counting down. Ellie said it again so the children heard it plain. Forty minutes. When the main power dropped, the keypad lock would drop with it. The bolt would slide back on its own and the door would open to whatever was waiting in the hall. Grant walked to the console and looked at the screen. Rows of green text he did not understand. He was a man who read bone, not code. He asked Ellie if she could stop the timer. She said the shutdown was hardwired. Someone had to reroute the lock to auxiliary power before the main cut. She pointed at a panel under the desk. Grant crouched and opened it. Wires in bundles. Labels worn off. He sat back on his heels. He had pulled a claw the size of his arm out of Montana dirt when he was eight, and he could read a hipbone in a slab of shale, and none of it helped him now. Malcolm was on the floor with his leg out straight. He looked at the panel and shook his head. He said he could talk Grant through math but not this. The girl held the puppy. The boy stood at Malcolm's shoulder and watched Grant's hands. Then the boy spoke. He said his grandfather had shown him the control room on the tour. He said his grandfather had made him sit at the console and try the menus. Grant looked at the boy. Ellie looked at the boy. The boy said his grandfather's name was John Hammond, and that the system had a screen for the doors, and he thought he could find it. Grant lifted the boy onto the chair. The boy's hands were small and fast on the keys. Menus opened and closed. He found a page labeled SECURITY. He found a page labeled DOORS. He found a line for the control room lock and a box beside it. He clicked the box. The screen asked for a password. The boy typed something. The screen said no. He typed something else. The screen said no. Grant watched the timer. Nineteen minutes. Eleven. The boy tried a third word and the screen changed. A green light came up on the panel under the desk. The lock had a battery now. Grant let out a breath he had been holding for a long time. He told the boy he had done it. The boy nodded once and did not smile. Ellie put her hand on the boy's shoulder. Something scraped the outside of the steel door. Slow. Testing. Then a second sound farther down, at the vent. Grant looked up at the ceiling. The vent cover was screwed in from the room side, but the duct behind it ran out into the hall and out into the building and out into everything the raptors had already learned.

The scrape at the vent came again. Grant stood under the ceiling and counted the screws in the cover. Four. The cover was thin sheet metal. The duct behind it was wider than a raptor's shoulders. He had measured raptor shoulders in a lab in Montana from a cast, and he knew what would fit through that hole. He told Ellie he needed something to block it. She looked around the control room. Steel desk. Rolling chairs. A tall filing cabinet against the far wall. She pointed at the cabinet. Grant shook his head. Too tall to lift onto the desk, and the vent was above the desk, near the ceiling. Malcolm watched from the floor and said the cabinet would tip before it seated. He was right. Grant climbed onto the desk and put his ear to the vent cover. He heard breathing. Not fast. Patient. The raptor was in the duct already, working its way toward the cover from the far end. He heard a claw tap the metal, testing. Then a second tap farther down. Two of them. He got down and told Ellie the plan. They would empty the filing cabinet, lay it on its back on the desk, and shove the open end against the vent. The drawers would jam the duct from the inside once he pushed them out. Ellie did not argue. She pulled drawers and dumped paper on the floor. The girl held the puppy tight against her chest and stepped back against the wall. The boy helped Grant tip the cabinet. They got it onto the desk. Grant climbed up beside it. He unscrewed the vent cover with a coin from his pocket. The cover came free. He looked into the duct and saw a narrow snout and one alert eye ten feet in. The raptor lunged. Grant shoved the open cabinet mouth against the vent and drove a drawer forward into the duct with both hands. The drawer wedged. The raptor hit the drawer and the whole cabinet jumped. Grant drove a second drawer in behind the first. Then a third. The cabinet held. He climbed down. His hands were shaking. Ellie pushed the desk hard against the wall to pin the cabinet in place. Malcolm let his head rest on the floor. The girl was crying without sound. The boy stared at the ceiling. Something scraped the drawers from inside the duct, then stopped. The raptor was thinking. Grant sat on the floor and listened. The scraping at the steel door had stopped too. He did not take that as good news. He had told the children this was an adventure. He looked at the console. The battery light was steady. The door was locked. The vent was plugged. Then he heard it, far off through the wall of the visitor center, a low sound that was not a raptor. A heavier step. Something bigger had come to the building.

The heavy step came again through the wall, closer now. Grant stood in the middle of the control room and listened. The children watched him. Ellie watched him. He had no name for what was outside because he could not see it, and without seeing it he could not guess its reach, its bite, or whether the steel door would matter. He had forty minutes of battery light and a barricade of office furniture. He needed to know what was coming. He crossed to the console and looked at the small monitors. Most were black. Two showed static. One showed the front approach of the visitor center from a camera mounted above the main entrance. The picture was gray and grainy, but the palms along the walk were clear, and the empty pavement between them. Grant leaned close. Ellie came up beside him. The boy climbed onto a chair to see. The girl held the puppy and stayed against the wall. On the screen, one of the palms shook. Then the next one. Something big was moving through the planted trees near the entrance, pushing the trunks aside like weeds. A raptor stepped out onto the pavement in front of the doors. It stopped. It turned its head back toward the shaking palms, and its whole body went low and still. Grant had never seen a raptor do that. The raptor bolted. It ran across the frame and out of sight in under a second. The palms parted. A tyrannosaur walked out onto the pavement. Grant knew the skull before the rest of the animal cleared the leaves. He knew the jaw. He had held a cast of that jaw in a lab and measured the teeth against his hand. On the monitor the head alone filled a quarter of the screen. The animal stopped in front of the glass doors and lowered its snout to the ground where the raptor had stood. It smelled the concrete. Then it lifted its head and looked, for a long moment, straight at the camera. "It's hunting the raptors," Grant said. His voice was steady. He had wanted this answer and now he had it. The bigger animal did not want the building. It wanted what was around the building. The steel door in the ceiling duct and the scratches on the east lock plate were no longer the first problem. The raptors would have to choose between staying to work on the control room and running from the thing on the pavement. Grant turned from the screen. Malcolm was watching him from the floor. The old man who had built the park was not in this room, but Grant thought of him then, of the money he had taken, of the tears they had both shed at the paddock. He told Ellie to move Malcolm away from the door. Whatever the raptors did next, they would do it soon.

Grant kept his eyes on the monitor. The tyrannosaur moved out of frame, and the pavement in front of the glass doors sat empty. Somewhere on that pavement the raptors were deciding. He needed to know when the lobby was clear, because the lobby was the only way to the exit, and the exit was the only way to get the children off the island. The single working camera showed him the front walk. It did not show him the lobby. "We need another angle," Grant said. Ellie was crouched by Malcolm, folding a jacket under his leg. She looked up. "The tour feed," the boy said from his chair. He was already reaching across the console. He typed with two fingers and brought up a menu. One line read LOBBY GREETER. He selected it. The monitor went black, then filled with a wide shot of the lobby floor. Grant leaned in. The camera was mounted inside the mouth of a life-size triceratops model near the front desk. The angle looked out between the horns. Grant could see the front doors, the reception counter, the corridor mouth that led toward the control room, and the stretch of tile between. A raptor stood in the middle of the tile. It was not moving. Its head was turned toward the glass doors, low, listening. A second raptor crossed behind it and disappeared down the corridor toward them. Grant felt the boy stiffen next to him. "They're inside," Ellie said. Then the glass at the front doors shook. The standing raptor bolted for the corridor, following the first. A shape passed the doors outside, huge, and the whole facade shuddered as the tyrannosaur's flank struck the frame. The doors did not break. The tyrannosaur kept moving. On the tour camera, Grant watched both raptors vanish into the corridor after their only cover. Away from the front. Toward the control room. Grant stepped back from the screen. He had his answer. The lobby was empty. The path to the front doors was open for as long as the tyrannosaur stayed on the walk outside, which was not long. But the raptors were now in the hallway between the control room and that path. He could see the exit. He could not reach it. "They came inside," he said. He kept his voice level for the girl, who was watching him with the puppy pressed to her chest. He had wanted the lobby cleared and it had cleared. The raptors had cleared it by walking past this door. Grant looked at the steel between them and the corridor and listened. A claw scraped the tile on the other side. Then a second. The animals he had spent his career defending in print were standing six feet from the children, and the only way out ran straight through them.

The scraping on the tile stopped. Grant listened. The raptors were not leaving. They were waiting for the door to open. He looked at the steel between them and the children and understood he could not simply crack it and run. If he opened the door, the raptors would charge, and the girl and the boy would be caught in the corridor with no cover. He needed to pull the animals off the door first. He needed to send them somewhere else. He turned back to the console. "The tour feed," he said to the boy. "What else can it play?" The boy scrolled. Exhibit clips. Fence diagrams. A short film narrated by the old man who had built the park. And, near the bottom of the menu, a line marked LOBBY GREETER AUDIO. Grant leaned over the boy's shoulder. "Can you push sound to the lobby speakers from here? Only the lobby." "I think so," the boy said. His fingers moved. A speaker icon appeared beside the lobby zone. He muted every other zone on the map. Grant took the microphone off its cradle and set it down. He did not want his voice. He wanted a herd. He pointed at the exhibit menu. "Play the triceratops clip. Loud." The boy selected it. A low, wet bellow rolled out of the console monitor and, a second later, out of the lobby speakers on the tour camera feed. The horned model in the corner of the lobby seemed to roar from its own mouth. Grant heard the sound leak through the steel door as a muffled call. He heard something better. Claws left the tile outside. Two sets. Moving away from the door. Toward the lobby. On the greeter camera he watched them come into frame. The lean one stopped in the middle of the tile, head cocked at the model. The second circled behind it, low, testing the air. They did not know what a recording was. They only knew a large animal was calling inside the building, and a large animal meant either a fight or a meal. "Keep it playing," Grant said. He pulled Ellie up by the elbow. He lifted the girl. The puppy squirmed inside his jacket and he clamped his arm across it. Malcolm got his cane under him with the boy's help. Grant put his hand on the keypad. "When I open it, we go left, away from the lobby, to the service door at the end. Do not look back. Do not stop for anything." Ellie nodded. The girl nodded against his shoulder. He punched the code. The steel door slid. The corridor was empty. From the lobby behind them the bellow rolled again, and under it Grant heard the wet click of a raptor's jaw closing on plastic. He ran.

Grant ran left down the corridor with the girl in his arms. Ellie came behind him with the boy. Malcolm limped last, one hand on the wall, cane striking tile. The bellow of the horned animal rolled from the lobby behind them, wet and huge in the speakers. Grant counted doors. The service exit sign glowed at the far end. Forty feet. Thirty. He heard the recording loop back to its start and knew the clip was short. When it ended the lobby would go quiet, and two raptors would smell the corridor and come. He reached the service door and shoved the bar. It opened onto a concrete pad behind the building. Night air. Diesel smell. A cargo container sat on the pad with its doors half open, corrugated sides streaked with rust. A staging bin for park supplies. Grant saw it and made his decision in one breath. The car lot was too far. The trees were too far. The container was ten steps. "Inside," he said. He set the girl down and pushed her toward the container. Ellie went with the boy. Malcolm dragged himself over the lip and collapsed against the back wall. Grant hauled the first door shut, then the second, and caught the interior latch with his fingers before the bolt fell. He held the doors closed from inside and pressed his ear to the seam. The lobby speakers cut off mid-bellow. Silence rolled through the building and out the open service door behind them. Grant held his breath. For three seconds there was nothing. Then a claw scraped concrete. One raptor. Then a second set, lighter, circling. They had followed the scent through the corridor and out onto the pad. Grant felt the girl's hand grip his belt. He did not move. The puppy inside his jacket stayed still, as if it understood. A snout pushed the container door. The steel shifted an inch against Grant's palms. He braced his boots on the floor ribs and held. The raptor pushed again, harder, testing. Grant heard the wet click of its jaw working. He remembered his own paper. They test doors. They find the weak ones. This door had no lock he could reach. Something enormous moved on the pad. The ground took the weight of it through the container floor, into Grant's knees. A low chest sound, not a roar, a warning. The raptor at the door froze. Grant heard it scrabble backward. Then both raptors broke and ran. A heavier tread followed them, three strides, four, and the sounds moved off around the side of the building and were gone. Grant kept his hands on the doors a long time before he let go. He turned to the others in the dark of the container. "We wait," he said. "Until it moves off for good. Then we find a vehicle." The girl nodded against his side. Outside, somewhere past the loading pad, the tyrannosaur was hunting again.