The radio in the break room had been broken for three weeks and Jack Murdock kept meaning to fix it and kept not meaning to fix it, which was typical of Jack Murdock—he kept meaning to do things and kept not doing them, which was how you ended up thirty-four years old, drafted into a war you didn't understand, fixing electrical equipment in a hole beneath the earth.

"Come on, you old bitch," he muttered, turning the tuning dial. Static. More static. The kind of static that sounded like rain on a tin roof. He tapped the side of the radio with his knuckle. The voice that came out was tinny and distant, like someone speaking from the bottom of a well.

"—weather reports indicate continued—static—"

Jack turned it off. The silence that followed was heavy and warm, like a blanket. It was the kind of silence you got in a place with no windows and no sky and the hum of generators somewhere below you, always below you, a vibration you felt in your teeth more than you heard with your ears.

He poured himself coffee from the dented pot on the hot plate. It was bad coffee. It was the best coffee he'd had in weeks.

"Still broken?"

Jack looked up. "Lace. You scared me."

Lace Rollins leaned against the doorframe, holding a manila envelope. She was wearing her uniform, which she always did, even in the break room, even when there was no one to see her. The uniform made her look sharp and official and, Jack had to admit, very pretty. The nickname came from the doilies—little lace things her grandmother had taught her to make—that she wrapped around care packages she sent to soldiers. Everyone she knew got one, including men she'd never met.

"Radio's not broken," Jack said. "It's depressed. It knows where we are."

She smiled. "You're a riot, Murdock."

She sat down across from him and opened the envelope. Inside was a letter—handwritten, on personal stationery. She held it out to him.

"I think this is for you."

Jack took it. The outside was addressed to "Sergeant Jack Murdock, Underground Facility 7." The handwriting was neat and slightly slanted, the kind of handwriting that belonged to a woman who wrote letters for fun.

He looked at her. "Where did you get this?"

"Intercepted the mail carrier. Standard procedure." She paused. "I read it. Don't get mad."

"Lace, you read my— that's a violation of—"

"Of what? The Army regulation that says intelligence officers shouldn't read personal mail? Yeah, I know. I broke it. Twice. Once for your letter and once for a letter from a boy in Kansas who wrote to his girlfriend every day for a year and never once mentioned the war."

Jack stared at the letter. "You read it."

"I did." She was smiling, but it was a nervous smile. "It's nice. Your girl writes nice."

"I don't— she's not— it's not—"

"It's a letter, Jack. From someone who cares about you. You can be mad at me later. Right now, drink your terrible coffee and read your nice letter."

He didn't open it. He put it in his pocket. He would read it later, when he was alone, when the generators were humming and the coffee was gone and there was nothing to do but stare at the concrete ceiling and think about things he'd rather not think about.

He thought about opening it now. He thought about the woman who had written it, the way she had taken the time to sit down and write words on paper and fold it into an envelope and trust that the mail would find him. In a world where everything was broken and everything was dying and the only certainty was that tomorrow would be worse than today, a letter was the most radical thing a human being could produce.

"Hey," Lace said. "You okay?"

"I'm fine."

"You don't look fine."

"I never look fine."

She reached across the table and took his hand. Her fingers were warm. They were always warm. "I'm going to visit Pops," she said. "He's been locked in his office for two days. Someone needs to make him eat."

Pops—General Harigan—was the commanding officer of Facility 7. He was a hard man, a career soldier who had been fighting wars since he was eighteen and the Philippines. He'd lost his son in Korea two years ago, and since then he'd been harder, quieter, more efficient. He didn't cry. He didn't talk about his son. He just worked, and he gave orders, and he made decisions that kept Jack up at night.

Like the order he'd given Jack three weeks ago: "Go down to Generator Room C. Don't come up until I tell you."

Jack had gone. He had done exactly what he was told. He had spent three weeks in Generator Room C, overloading electrical circuits and running diagnostics on equipment he barely understood, and he still didn't know what he was building or why.

All he knew was that when the time came, everything would go dark.

He went to Pops's office at five o'clock. The door was closed. He knocked.

"Come in."

Pops sat behind his desk, which was covered in maps and reports and an empty whiskey glass. He looked older than fifty-eight. The lines around his eyes had deepened. His hair was grayer. He was staring at a photograph—he had one on his desk, a young man in uniform, smiling at the camera. Pops's son. Dead in Korea.

"Hey, Pops," Jack said. "Lace sent me. She says you need to eat."

Pops looked up. "Did she now?"

"She's very concerned about my nutritional welfare. Seems to think I'm wasting away."

"You are wasting away."

"Thanks, Pops. Real encouraging."

Pops picked up the photograph and looked at it for a long moment. Then he put it down. "How's the work going?"

"Same as always. I turn dials. Things hum. I feel important."

Pops was quiet. Then: "You ever wonder why we're down here?"

"All the time. Then I stop wondering because the coffee is bad and my bed is hard and wondering doesn't change anything."

"It's a blackout system," Pops said. "You create a blackout. A real one. Every radio, every radio, every piece of electronic equipment within five hundred miles goes silent. For hours."

"I figured."

"You figure what it costs?"

Jack looked at him. "Pops."

"I'm asking you, Jack. You're a good man. You fix things. You don't break things. But this job you're doing—it's a one-way street. You know that, don't you?"

Jack thought about the letter in his pocket. About Lace, who sent doilies to soldiers she'd never met. About Pops, who kept his son's photograph on his desk and never talked about him. About the thousands of men out there on the front lines, fighting a war that made less sense every day.

"I'm scared shitless," Jack said.

Pops nodded. "I know."

"Want to know why I'm doing this?"

"Yeah."

"Because if I don't, the guys over there get to keep talking to each other. And right now, I want them as confused as everyone else."

Pops looked at him for a long time. Then he said, very quietly: "You're a braver man than you know."

"I'm not brave. I'm just— I'm the guy who fixes things. And this is something that needs fixing."

The attack began at dawn on a Thursday.

Jack was in Generator Room C when the first explosions started. The room shook. Dust fell from the ceiling. The generators—massive, humming, industrial machines the size of small houses—rattled in their mounts.

He checked the readings. The overload sequence was already running. He hadn't started it—the system was automatic once it hit a certain threshold. But the threshold was too low. Someone had set it too low.

He looked at the control panel. The needle was in the red. The temperature gauge was climbing. The smell of burning insulation filled the air.

"Jesus," he said.

He ran to the manual override. There was a lever—red handle, heavy iron—that would stop the overload. If he pulled it, the system would shut down. The blackout wouldn't happen. The enemy would keep their radios. The men on the front would keep getting killed.

He pulled the lever.

The system resisted. It fought him. The generators roared, the lights flickered, and for a moment Jack thought the whole room was going to explode. Then the lever clicked into place and the hum began to decrease.

He stood there, breathing hard, his hand on the red handle.

And then he let go.

He stood there for a long time. He could feel the sweat running down his back. He could hear the generators winding down. He could hear the distant sound of artillery and the closer sound of his own heartbeat.

He picked up the red handle again.

And he pushed it back.

The generators roared. The lights flared. The temperature skyrocketed. Jack turned his face away from the control panel and closed his eyes.

He thought about Montana. He thought about the mountains. He thought about the way the light hit the snow in the morning, golden and warm and beautiful.

He thought about Lace and the doilies and the letter she had written.

He thought about Pops and the photograph.

He thought about nothing at all.

The overload hit like a lightning bolt. The generators screamed. The room filled with white light. Jack felt heat on his face—intense, immediate, unbearable—and then he felt nothing at all.

—

The blackout lasted seven hours.

Every radio in the region went silent. Every electronic device failed. The enemy's communications collapsed into chaos. The men on the front, deprived of coordination and command, fought with the desperate confusion of men who had been handed swords and told to fight tanks.

They lost. But they lost slowly, and slowly gave the friendly forces time to regroup.

Pops sat in his office for three days after the blackout ended. He didn't eat. He didn't sleep. He stared at the photograph of his son and cried, and he had never cried in front of anyone in his life, and no one saw him do it.

Lace found Jack's body twelve hours after the overload. He was sitting in a chair in Generator Room C, his hand on the red handle, his face peaceful in a way that surprised her. She didn't cry. She wrapped him in a blanket and sat with him for a while, the way she sat with wounded soldiers, the way you sit with someone who has gone through something and doesn't need you to do anything except be there.

Then she went back to work.

She sent the letter she had written to Jack. She never told him she loved him when he was alive. She told him when he was dead. That was the only way she knew how.

The letter arrived at his mother's house in Pittsburgh three weeks later. She read it sitting at her kitchen table, the letter in her hands, the radio in the corner cracked and silent and broken and never fixed.