Aurora Dawson clung to a cliff face on a world nobody had mapped. Below her, mist hid the ground. She loved this—the raw edge, the not-knowing what waited past the next handhold. She had crossed to this planet to climb what no one had climbed and dive where no one had dived. But right now her fingers were slipping, and she needed a route east to the ocean before nightfall. "You're going to fall," Dominic called from the ledge below. Tall, easy in his own body, he grinned even as he warned her. He always grinned. It made his warnings harder to take seriously. "I'm fine," she said. Then her foot skidded on wet rock. She dropped, caught a root, and swung hard against the stone. Her breath punched out. She hung there, arms burning. Dominic scrambled up and grabbed her wrist. Together they hauled her onto a narrow shelf. She lay flat, heart slamming. "Okay," she admitted. "Not fine." "We need a safer path," he said. "This cliff won't take us to the water. We're guessing, and guessing gets people killed here." He was right. Every step on this world was a new risk. They had no map, no guide, only the goal of reaching the eastern sea. That was when Aurora saw the eyes. A small animal watched them from a crack in the rock. It had a lithe body, webbed paws, and a fox-like face. It tilted its head, unafraid. Then it leapt. Aurora flinched. But the creature spread its webbed limbs and glided, riding the air across a gap she hadn't even seen. It landed on a hidden ledge and looked back at them. "It wants us to follow," she said. "You don't know that." "I know it just showed us a way across." She studied the rock where the animal had stood. A thin path ran along the cliff, gentle and wide, angling down and east. She'd never have found it alone. A second creature crept out beside Dominic and pressed its nose to his hand. He froze, then laughed. "Okay. Hi." They followed the two animals down the hidden path. It was slow but sure. The gliding creatures scampered ahead, waited, then moved again. By late afternoon the cliff opened onto a wide green valley. A tree stood at its center, heavy with red and green leaves and clusters of purple fruit. Aurora pulled one loose and bit. Sweet juice ran down her chin. "They led us to food." Her creature climbed onto her shoulder and settled there. It weighed almost nothing. Dominic looked past the tree. The valley kept going, but a river cut straight across their path, fast and deep. "East is that way," he said. "And that river's in the way." Aurora smiled and scratched her new companion's ears. They had a guide now. They had a friend. But the water ahead ran too wide to climb and too cold to swim.

The river had stopped them cold. But the two gliding creatures did not turn back. They scampered along the bank, then swung away from the water and down a low slope. Aurora followed, her companion riding her shoulder. Dominic came behind her, watching the animals like they might vanish. "They know something we don't," Aurora said. "They usually do," Dominic said. His grin came easy, but his eyes stayed on the path. The creatures led them east all afternoon. The ground fell away in gentle steps. Then the air changed. Aurora smelled salt. She broke into a run and stopped at the edge of a wide beach. The ocean spread out, blue and endless. She laughed. This was why she came to this world. To dive where no one had dived. "There," she said, pointing. Rocks rose from the water in a broken line, leading out toward the deep. They jumped from rock to rock. The gliding creatures leapt ahead, sure-footed on the wet stone. Salt spray hit Aurora's face. Her boots slid once, but she caught herself and grinned back at Dominic. At the last rock the water turned dark and deep. Aurora crouched to catch her breath. Then something big moved below the surface. "Dom." She grabbed his arm. A long shape rose. It was like a dolphin, but twenty feet long, with broad side fins and smooth blue-gray skin. A clear pod bulged along its back. A second one surfaced beside it. They circled the rock, calm and slow. "They're not attacking," Dominic said. He sounded like he was trying to believe it. Then the two gliding creatures did something impossible. They leapt off the rock. Aurora reached for hers too late. Each animal landed on a broad back and slipped inside the clear pod. The pod sealed around them. "No," Aurora breathed. The great creatures dove. The water closed over them. The gliding animals were gone, sealed inside, underwater. "They'll drown," she said. She stood at the edge, ready to jump in. Dominic caught her wrist, the way he had on the cliff. "Wait. Look at those pods. They're sealed. Made for it." His voice was steady now. "Give them a minute." She hated waiting. She counted seconds. Ten. Thirty. A minute. The sea stayed empty. Her chest tightened. Then the water broke. The two long creatures rose, and the pods opened. The gliding animals climbed out, dry, shaking themselves. Each one carried a mouthful of green underwater plants. Her companion leapt back onto the rock and dropped the plants at her feet. They were thick and glossy, torn from the deep seafloor. Aurora stared. The gliding creatures and the sea creatures worked together. They rode down, gathered food, rode up. She picked up a plant and turned it in her hands. "They didn't lead us here for the beach," she said slowly. "They brought us to something bigger." Dominic knelt beside her. "Then we're not done exploring." Aurora looked at the deep water where the creatures waited. She wanted to go down there. She just didn't know how yet.

Aurora filled two jars with seawater while Dominic wrapped the deep-sea plants in cloth. Her gliding creature watched from the rock, tail curled. The sun dropped toward the water. She wanted to stay, but they needed answers first. "If it's food," Dominic said, "we bring back more than a story." They climbed off the rocks and started the long walk back to the shelter. The diamond-shaped shelter sat quiet when they arrived. Four round modules wrapped a small courtyard. Aurora carried the plants straight to the lab module. Dr. Giovanni stood over a bench, sleeves pushed up, testing a soil sample. She was the biologist tasked with feeding the whole colony. When Aurora set the wet bundle down, Giovanni looked up and went still. "Where did these grow?" she asked. She was already reaching for gloves. "The seafloor," Aurora said. "The sea creatures dove for them. We just carried them home." Giovanni pressed a plant flat and slid it under her scope. She said nothing for a long time. Aurora and Dominic waited by the door. Aurora's boots still dripped salt water on the floor. "These are dense with nutrients," Giovanni finally said. "Protein. Minerals. Everything a person needs." She looked up, and her tired face broke into a smile. "They're safe. This could feed everyone." Dominic laughed and clapped Aurora on the shoulder. Aurora grinned, but her eyes stayed on the jars of seawater. "What about the water?" she asked. Giovanni ran a strip through one jar. "Salty, but I can purify it," she said. "Clean drinking water, in volume." She set the strip down. "One thing. The plants taste flat. Bitter, even. For real meals, for morale, you'll want something sweet." She thought a moment. "Those red-and-green trees near the ridge carry purple fruit. If those are safe, we'd have both." So it was settled. The plants were food. The water was drinkable. The problem that sent them east was solved. But Aurora barely heard the last part. She stood at the lab window and looked toward the dark line of the sea. She thought of the sealed pods on the creatures' backs. She thought of the deep water closing over them, and everything down there no one had seen. "Aurora," Dominic said. He knew that look. "You want to go back." "I want to go down," she said. "Not just watch them dive. I want to see the seafloor myself." Giovanni frowned. "We don't have diving gear. Nothing rated for that." "The creatures have gear," Aurora said. "They ride down in those pods and come up dry." She turned from the window. "Tomorrow we go back to the beach. We bring the gliding creatures. And this time I find a way into the water with them." Dominic held her gaze, then nodded. "Then we're diving." Aurora looked at the wet jars, the safe plants, the closed problem. It was done. The next one already pulled at her, out under the waves.

At dawn Aurora and Dominic walked back to the ocean beach. The shuttle pilot, Cole Davis, flew low above them and circled once. He kept watch from the air on every exploration run, ready to pull them out if things went wrong. His voice crackled from the radio clipped to Aurora's belt. "Water's flat today. I'll be overhead if you need me." Aurora waved him off. She had no time for caution now. They climbed out to the far rocks and waited. Aurora didn't know how deep the sea creatures dove, or how long, or how they found their way in the dark water. She only knew she wanted to go down with them. The waves slapped the stone. Then the surface broke. A glidefin rose, forty feet long, its dark back gleaming. A clear pod bulged along its spine, big enough for two. The creature turned one eye toward them and held still, waiting. Dominic gripped the rock. "That's our ride," he said. "You sure?" Aurora was already moving. She slid into the pod and Dominic followed. The clear shell sealed above them with a soft hiss. Air stayed trapped inside, dry and cool. The glidefin dove. Water rushed past the shell. Aurora watched the light shrink to a green glow, then to almost nothing. Her heart pounded, but she grinned the whole way down. The creature slowed inside a cave. It surfaced in a pocket of air under a rock ceiling. The pod opened. Aurora and Dominic climbed out onto wet stone. The cave glowed faintly. They walked toward the light, boots sliding on slick rock. On a low ledge sat a jewel the size of a fist. It glowed jade green. Its shape was strange and familiar at once. Aurora stared. "Dom," she said. "That's the ocean. The shape of it from above." She had seen the coastline from the shuttle. The jewel matched it, curve for curve. She reached for it. The air shifted. A shape formed above the ledge, pale and shimmering, half there and half not. A voice spoke inside her head, without sound. *You came far to touch this.* Aurora froze, hand still out. Dominic stepped back. "Did you hear that?" he whispered. "In your head?" Aurora nodded slowly. The shape hung between them and the jewel. Aurora couldn't tell if it meant to help or to stop them. Its glow pulsed once. *Why do you want what belongs to the deep?* the voice asked. It was not angry. It was not kind. It simply waited. Aurora lowered her hand. She met the shimmer where its eyes might be. "I want to understand this place," she said out loud. The entity pulsed again, brighter. It did not vanish. It did not let her pass. Whatever it was, it now knew her face, and it had a question she could not yet answer.

The entity waited above the jewel. Aurora's hand still hovered in the glowing cave. She lowered it. "You asked why I want this," she said. "I'll tell you the truth. We came from far away." The shimmer pulsed. *Then speak.* Aurora took a breath. "Our sun was dying. It swelled into a red giant. Our ancestors left home to find another one. The trip took thousands of years. Ark IV is the fourth world discovered with environments people could live on." Dominic stood close, listening. "We're not from here," he added quietly. "We're strangers to your world." The entity's glow dimmed, then brightened. *Aliens, like the ones who exiled me.* The voice grew heavy. *My people were exiled long ago. Before they scattered, they hid relics in the cruelest places on this world. Ice. Fire. Deep water. When combined can give the power to create or destroy.* The shape leaned toward Aurora. *This jewel is one of many.* Aurora's pulse jumped. "Where are the others?" *Hidden where the world is harshest,* the entity said. *You would need to search, and to survive.* It pulsed once more, softer now. *You came to understand. That is enough. Take the jewel. Carry the warning with it.* The shape thinned and vanished. The cave went dark except for the green stone. Aurora lifted the jewel from the ledge. It was warm. Nothing struck her down. Dominic let out a shaky laugh. "It let you have it." They climbed back into the pod on the glidefin's back. The clear shell sealed with a hiss. The creature dove, then rose, and broke the surface into daylight. Above them the orbital shuttle circled low, its polished body catching the sun. The radio on Aurora's belt crackled. "There you are," Cole said. "You were down twenty minutes. I was about to send help." A second voice cut in, brisk and warm. "He means he panicked." That was Laezah, his copilot, sharp-tongued and steady when Cole was not. "Glad you surfaced. He's been chewing the controls." The shuttle set down back at the colony. Laezah dropped from the hatch first, long brown hair whipping in the wind. She spotted the jewel in Aurora's grip and stopped. "That's what was down there?" Aurora held it up. Green light played across Laezah's green eyes. "It's shaped like the Green Sea," Laezah said. "How is that possible?" Aurora told them everything. The exiled makers. The relics hidden in ice and fire and deep water. The power to create or destroy. Cole's smile faded. Laezah crossed her arms. "So this planet has more of these," she said. "In places that could kill us." "Yes," Aurora said. She turned the jewel over in her hands. She loved a hard climb, a deep dive, an unmapped edge. Now the whole world had become one. "We have to find them before someone else does. I want to go after the next one." Laezah studied her, then nodded slowly. The search had a map now, and it pointed somewhere dangerous.

The green jewel sat on the table in the courtyard habitat, ringed by tubular modules. Aurora had told the story once by the shuttle. Now she told it again, slower, so everyone heard the whole thing. Dominic stood beside her. Cole leaned against a doorway. Laezah crossed her arms. Arik, the tech who ran the colony's computers, tapped notes into a pad. Dr. Marie Giovanni, the biologist who had cleared the deep-sea plants as food, listened with her goggles pushed up her forehead. "The entity said there were more relics," Aurora finished. "Ice, fire, deep water. This jewel came from deep water." She turned it in her hands. "The next one is under the ocean too. But the ocean is huge. I could dive for weeks and find nothing. Every dive burns air. Every dive can kill you." She looked around the ring of faces. "I need to know where to look." Laezah uncrossed her arms. "I wish we'd been with you at the cliff," she said. "We could have flown you straight down to the Green Sea. But we had orders. We took Arik and Dr. Giovanni north to the volcano, hunting geothermal power." She glanced at Arik. "We got split up up there. He wandered off." Arik looked up from his pad. "I found a cave," he said. "In the volcano's flank. Hot air pouring out. I went in maybe thirty meters." He shrugged. "Dead end, I thought. There was a slab in the back. Carved. Lines of it, glowing faint orange." Aurora's chest went tight. She whispered to Dom, "A slab. Carved. Glowing." She set the jewel down. "Fire. The entity said fire. A relic hidden where the world burns hottest." She glanced at Arik suspiciously. Dom whispered back, “You think it was another relic in that cave?” "I think it was." Aurora's mind raced. She had been staring at the wrong ocean. The fire relic was already found. Arik had walked past it and called it a dead end. Giovanni set down her cup. "If it's real, we can't leave it in a live volcano," she said. "Heat like that could crack it. Or trigger it." "And anyone else from the colony could stumble in," Dominic said. "If Arik hasn’t already." Aurora picked up the jewel again. It was warm in her palm. She had wanted the sea. Now the mountain called louder. "Then the ocean waits," she said. "We go north first. To the volcano." She looked at Cole and Leazah. "Can you take me back to that cave?" Cole’s jaw tightened. He did not want to go back. But he nodded. "It’s dangerous up there, but I can find it." Cole pushed off the doorway. "I'll fly you." Laezah was already reaching for her flight jacket. Aurora closed her hand around the jewel. The wide, empty ocean had scared her. This did not. Now she knew exactly where the next relic sat, glowing in the dark, waiting in the heat.

The shuttle set down on the volcano's lower flank at dawn. Cole cut the engines and looked at Aurora. He flew air support and search and rescue, and he had not wanted to come back here. "I'll keep it hot," he said. "You hit trouble, you climb out fast." Laezah checked the straps on Aurora's pack. Aurora and Dom stepped onto black rock still warm from the mountain's heat. Orange light leaked from the cave mouth ahead. They went in deep. The tunnel narrowed, then opened into a wide chamber. Aurora stopped. Two lava tubes cut through the floor below them. One ran dry and dark. The other glowed, thick and slow, pushing heat up at her face. A ledge of crumbling rock split the two. One wrong step and she would drop into the burning channel. "Careful," Dom said. "That edge won't hold." Then the air changed. A dark shape rose from the glowing tube. It had no body she could name, only shadow against the fire, and it spoke inside her head. "You chase what should stay buried." Aurora had met a being like this before, under the sea, guarding the green jewel. That one had warned her. This one felt colder. "We're trying to protect the relic," Aurora said aloud. "Before heat cracks it." The shadow turned, slow. "The flowing tube hides the chamber you want." It paused, and she felt it choosing its words. "Loosen the stone hanging above. The lava will turn to the dry tube. The way will open." It told her no more. Aurora felt the gap in it, the thing it left unsaid. "It's hiding something," she whispered to Dom. "Maybe," Dom said. "But it's the only way through." Aurora looked up. A thick stone spike hung from the ceiling over the glowing tube. She loved this part, the reach and the risk. She found a crack in the wall and climbed. Her fingers caught rough holds. Heat pressed up from below. Halfway up a flake broke loose and dropped, hissing into the lava. She froze, then kept going. She reached a jutting knob near the spike. She tied off, gripped hard, and swung. Her boots hit the stone spike once. Nothing. She swung again and kicked with both legs. The spike cracked. On the third swing it broke free and crashed into the glowing tube. The lava slammed against the fallen stone. It backed up, then spilled sideways into the dry tube. The glowing channel drained. Steam roared up. Aurora clung to the wall until the heat eased, then climbed down shaking. The shadow was gone. Where the lava had flowed, a dark opening now showed in the rock, leading deeper. "You did it," Dom said. Aurora stared at the new passage. The entity had helped her, but it had hidden why. Whatever waited inside, it had not wanted her to know. She stepped toward the opening.