"Security, how did this bum get past the gate? This is a military installation, not a shelter."The man in tattered clothes stood frozen, his weathered hands trembling slightly. Grease stains covered his jacket; a salt-crusted beard hid most of his face.Callahan stepped closer, voice dripping with contempt. "You served? Sure you did. And I'm an astronaut. Look at you—you're a disgrace to the uniform."Around them, mechanics stopped working. Sergeants glanced nervously. The afternoon sun cut through the hangar windows in golden strips, illuminating the oil-stained concrete floor.Callahan grabbed a mop from against the wall and shoved it toward the homeless man. "I don't care what you used to be. Right now, you're trespassing. You want to be useful? Grab that mop. Clean the hangar floor before the admiral gets here. Move."The man took the mop without a word. His blue-gray eyes never blinked.Then, from somewhere outside, the unmistakable sound of helicopter rotors began to grow louder: urgent, unscheduled, coming in fast.Six hours earlier, Marcus Sullivan woke under Pier 39 to the smell of rotting seaweed and diesel fuel. The space between the shipping containers had been his home for four years now, the early September heat already baking the concrete. He rolled up his sleeping bag with military precision, muscle memory from two decades of service never quite fading.Inside his backpack were three items: a broken military radio he tried fixing every night, a plastified photo of five men in combat gear, and a water bottle he'd refill at public fountains.The photo was creased down the middle. Three of those faces were dead because of coordinates he'd given them, because of a call he'd made. The coordinates were tattooed on his right forearm now, faded blue ink spelling out his guilt: 33° 18' N, 44° 24' E, Helmand Province.The day Reaper died and Marcus Sullivan started living on the streets.He climbed out from his shelter and walked toward the chain-link fence that separated the civilian pier from Naval Base North Island. He did this most afternoons—stood outside the fence and listened. The sound of helicopters taking off was the only thing that quieted the screaming in his head: the Seahawks, MH-60S models. He knew every bolt, every system, every protocol. He'd coordinated extraction missions from cockpits just like those, pulled pilots from burning wreckage in Fallujah, guided entire squadrons through sandstorms in Kandahar.They'd called him Reaper because death couldn't catch the men he protected. Until it did. Until he sent three of his own brothers into an ambush he should have seen coming.A delivery truck was backing up to the base entrance, gate wide open for the load. Marcus wasn't paying attention. His eyes were locked on a Seahawk lifting off in the distance. The sound pulled him forward—one step, then another. He crossed through the gate without realizing it.