Donovan crouched at the edge of the cracked parking lot, sketching one last frequency note before the junkyard ate his signal for good. The G.E.C.K. was waiting under all that rust, and he meant to carry it out himself. Then a shout pulled his head up. A man was stumbling past Zelda's clinic tent, knees folding under him on the broken cement. The stranger went down hard between patches of dead grass and broken glass. One hand stayed clenched around a roll of scorched paper. Zelda came out fast, already calling for her kit. Donovan reached him first and pried the paper loose. It was a Vault-Tec map, edges burned black, the center still readable. Frequency markings ran along the margins in a tight, careful hand. Donovan went cold. He knew that pattern. It matched the interference grid he'd spent weeks mapping around the junkyard. "He's crashing," Zelda said, pressing a wand to the man's chest. The stranger's eyes found Donovan's. His lips moved once. No sound came. Then his head rolled sideways and his hand opened, empty. A boot scraped behind Donovan. Kira Dallas stood there, glasses fogged from the run, pack still on her shoulders. "Kevin sent me," she said. "Said you needed verified backup." Her eyes dropped to the map, then the body, then the burned edges. "Look. That paper came out of the place you're trying to get into. That tells me everything about how they think." Donovan folded the map into his jacket. The stranger was gone. Whoever had drawn those frequencies had been inside, and someone had burned him out. The job was no longer his alone, and the thing in the junkyard already knew his name.

Kira spread the burned map across a workbench inside the junkyard's repair shed. Donovan watched her wire an old oscilloscope into a battered tool kit, clipping leads to a salvaged antenna. A tuxedo cat in a blue jumpsuit nosed past her boots, sniffing the cables. "Hold this steady," Kira said. The screen flickered green. Numbers crawled across the grid. Donovan leaned in. The waveform on the glass matched the frequency notations along the map's burned edge, line for line. "That's not a record," he said. "That's live." Kira's mouth went thin. She tapped the dial. The signal pulsed again, steady as a heartbeat. Achilles stepped through the doorway, wiping grease off his hands. A red and white robobrain rolled in behind him, antennas twitching toward the oscilloscope. "Picked it up on the yard speakers," Achilles said. "Same pattern. Coming from under us." He nodded at the floor. "Dish ground. The buried one." Donovan's stomach dropped. The broadcast wasn't a recording left behind. Something inside the vault was transmitting right now, on the exact grid that had been killing every scout's gear for ten meters out. His worst theory had a pulse. "It's not a jammer," Kira said quietly. "It's a call." The robobrain swiveled its dome toward the sound, and the cat's ears flattened. Achilles set both hands on the bench. "Then something down there is awake. And it knows we're listening." Donovan folded the map and pocketed it. The shielded relay in his pack suddenly felt light, insufficient. Whatever was broadcasting had killed a man to keep its frequency a secret, and now it was singing to anyone with the ears to hear. The job had just stopped being a recovery. It was an answer to a call he hadn't meant to accept.

Donovan was still turning the live signal over in his head when the yard alarm clanged. He bolted out past the scrap-metal pavilion, boots skidding on gravel. Kira shouted something behind him. Achilles was already moving toward the gate, rifle up. A man lay crumpled against the chainlink. Blood smeared the posts in a wide handprint. His chest heaved once, twice. Clutched against his ribs was a tight roll of yellowed blueprints, rust-stained and water-warped, tied with frayed orange twine. Donovan dropped to his knees and pried the bundle loose. Vault corridors. Pump rooms. The medical wing he'd been hunting for weeks. "Behind him," Achilles said flat. Past the gate, dust kicked up off the access road. Someone was coming fast, low and quiet, sweeping wide. Not one shape. Two. Donovan grabbed the runner under the arms. The tuxedo cat in the red jacket darted from the repair shed, paws skidding, and yowled at the open gate like he understood every second cost them. Donovan hauled the body back through the chainlink while Achilles slammed the gate and dropped the bar. A round whined off the metal. Then another. Then nothing — just boots fading the other direction, refusing the fight in daylight. They carried the runner to Zelda's tent. She worked fast, hands red to the wrists, but shook her head before Donovan even asked. The man's eyes found his. He tapped the blueprints once, hard, and mouthed a single word Donovan couldn't read. Then he was gone. Kira unrolled the schematics across the cot. The medical wing was circled in shaking pencil. So was a second mark Donovan didn't recognize — a smaller room, deeper down, labeled only with a number. Donovan stood up slowly. He had the map he'd needed. He also had two shooters who knew this gate, a corpse that proved someone inside the vault was still sending people up to die, and a circled room he hadn't planned for. The job had a route now. It also had a clock.

Donovan spread the runner's blueprints on the workbench and laid his own files beside them. The clinic logo in the corner of each sheet matched. Same Vault-Tec stamp. Same pump-room numbering. Same hand-printed dates. He pulled out the satchel Andy had carried in and tugged the water-system work order free. The engineer's signature curved the same way on both pages. Donovan pressed both thumbs into the bench and made himself breathe. One clinic. One target. Two routes in, and someone else already walking them. Andy leaned against the post and watched him connect it. "Told you. Same building, same ledger. Whoever ran that clinic kept two sets of pipes and one set of secrets. Nobody draws a second water line for fun." He tapped the unmarked room circled on the runner's sheet. "That's where the shooters came from. Bet you a week of caps." Donovan rolled the sheets into his camo-patterned board case, zipped the notebook pocket, and walked to the lookout platform at the back fence. Marcus was already up on the wooden deck, rifle across his knees. Zelda climbed the ladder behind Donovan, medical bag bumping each rung. From the platform Donovan could see the whole yard: the gate, the coffee hut roof, the concrete pillar marking the hatch. He spread the blueprints on the planks and weighted the corners with shell casings. "Two ways in," Donovan said. "Main hatch under the slab. Second pump line we didn't know existed. If they're using the second line, they walk under our feet and come up wherever the pipe surfaces. We have to assume that's inside the perimeter." Marcus studied the sheet without touching it. "Then the perimeter moves out," he said. Zelda nodded once. "And the clinic tent moves in. I'm not patching people in the open." They worked it through in under an hour. Donovan drew the new line: a hardened barrier of chainlink woven through rebar and barbed wire, ringing the back lot wide enough to swallow the pillar and the suspected pipe ground. Two more lookout platforms at the corners. Zelda's tent shifted behind the equipment shop, inside the new ring. Marcus would cache rifles in the shop and the coffee hut. Andy, watching from the ladder, offered the layout of the clinic's old delivery bay from memory. Donovan wrote it down. He did not thank him. By dusk the first posts were sunk and the wire was going up. Donovan stood at the unfinished gap and looked out past the fence line. The job had been one route and one clock. Now it was one clinic with two doors, a defended yard, and a partner he hadn't picked. He had closed the question of where the runner came from. He had opened a harder one: which door did he go through first, before someone else closed both.

By morning the back barrier stood shoulder-high, but the gaps still bothered Donovan. He walked the line with his map case open and counted three blind angles between the new posts. The clinic tent sat quiet behind the equipment shop. The hatch pillar waited under its slab. Two doors, one clock, and not enough eyes on either. He found Marcus at the coffee hut, rifle propped, ledger open. "We need more guards," Donovan said. "Four, if we can get them. Before I go down the hatch." Marcus closed the ledger. "Andy already pushed the same number. Raider band, twenty guns, two days out." He set the book aside. "I'll run the hire. You run the interviews. My yard, your call on who carries a rifle inside the wire." He stood. "Use the watch shack at the back gate. Keeps them off the main lot until we clear them." Donovan set up inside the shack an hour later. The salvaged car door hung crooked on its hinges. Sandbags lined the roof and dulled the wind. He propped his red file organizer on the plank table and laid out contract sheets, a pen, and the worn G.E.C.K. manual he kept for reference — its blue and yellow cover fanning open to the pharmaceutical index Zelda had annotated in the margins. He wanted the manual visible. Anyone who flinched at the Vault-Tec stamp was not walking his perimeter. Achilles brought them in one at a time. Two local riflemen came first. Donovan checked their rifles, their reload times, and the names they gave. Both cleared. He signed them on and slid the contracts into the organizer. The third recruit was a lean tabby in a blue mechanic's jacket, tool pouch heavy on his belt. "Robert Breem," he said. "Wrench work mostly. Shoot straight when I have to." Donovan asked where he'd worked. Breem named two salvage crews Donovan could verify through Kevin's network. His hands were steady on the rifle. Donovan signed him. The fourth walked in and Donovan's chest tightened before the man spoke. Donald Draper. Same crooked grin. Same shooter's stance Donovan had trained beside in his old unit. "Heard you needed guns," Draper said. "Andy pulled my name." Donovan studied him for a long beat. He knew Draper's shooting. He did not know what Draper had done in the years between. He signed him anyway. Four guards. Coverage before the raiders arrived. By dusk Achilles had the rotation posted on the shop wall and the new hires drawing from the armory locker. Donovan stood at the shack door and watched Draper load a magazine with the same rhythm he remembered. The perimeter was covered. The hatch descent could go on schedule. He had bought the guns he needed and let one through the wire whose loyalty he could not yet price.