Next to my hip, the fax machine started beeping and whirring. A sheet of thin paper fed itself in.

“So what do we make of that?” Finlay said. “The guy was foreign? Or an American who lived abroad or what?”

The thin sheet of paper fed itself out, covered in writing. Then the machine stopped and went quiet. I picked up the paper and glanced at it. Then I read it through twice. I went cold. I was gripped by an icy paralysis and I couldn’t move. I just couldn’t believe what I was seeing on that piece of fax paper. The sky crashed in on me. I stared at the doctor and spoke.

“He grew up abroad,” I said. “He had his teeth fixed wherever he was living. He broke his right arm when he was eight and had it set in Germany. He had his tonsils out in the hospital in Seoul.”

The doctor looked up at me.

“They can tell all that from his fingerprints?” he said.

I shook my head.

“The guy was my brother,” I said.

ONCE I SAW A NAVY FILM ABOUT EXPEDITIONS IN THE FROZEN arctic. You could be walking over a solid glacier. Suddenly the ice would heave and shatter. Some kind of unimaginable stresses in the floes. A whole new geography would be forced up. Massive escarpments where it had been flat. Huge ravines behind you. A new lake in front of you. The world all changed in a second. That’s how I felt. I sat there rigid with shock on the counter between the fax machine and the computer terminal and felt like an Arctic guy whose whole world changes in a single step.

They walked me through to the cold store in back to make a formal identification of his body. His face had been blown away by the gunshots and all his bones were broken but I recognized the star-shaped scar on his neck. He’d got it when we were messing with a broken bottle, twenty-nine years ago. Then they took me back up to the station house in Margrave. Finlay drove. Roscoe sat with me in the back of the car and held my hand all the way. It was only a twenty-minute ride, but in that time I lived through two whole lifetimes. His and mine.

My brother, Joe. Two years older than me. He was born on a base in the Far East right at the end of the Eisenhowerera. Then I had been born on a base in Europe, right at the start of the Kennedy era. Then we’d grown up together all over the world inside that tight isolated transience that service families create for themselves. Life was all about moving on at random and unpredictable intervals. It got so that it felt weird to do more than a semester and a half in any one place. Several times we went years without seeing a winter. We’d get moved out of Europe at the start of the fall and go down to the Pacific somewhere and summer would begin all over again.

Our friends kept just disappearing. Some unit would get shipped out somewhere and a bunch of kids would be gone. Sometimes we saw them again months later in a different place. Plenty of them we never saw again. Nobody ever said hello or good-bye. You were just either there or not there.

Then as Joe and I got older, we got moved around more. The Vietnam thing meant the military started shuffling people around the world faster and faster. Life became just a blur of bases. We never owned anything. We were only allowed one bag each on the transport planes.

We were together in that blur for sixteen years. Joe was the only constant thing in my life. And I loved him like a brother. But that phrase has a very precise meaning. A lot of those stock sayings do. Like when people say they slept like a baby. Do they mean they slept well? Or do they mean they woke up every ten minutes, screaming? I loved Joe like a brother, which meant a lot of things in our family.

The truth was I never knew for sure if I loved him or not. And he never knew for sure if he loved me or not, either. We were only two years apart, but he was born in the fifties and I was born in the sixties. That seemed to make a lot more than two years’ worth of a difference to us. And like any pair of brothers two years apart, we irritated the hell out of each other. We fought and bickered and sullenly waited to grow up and get out from under. Most of those sixteen years, we didn’t know if we loved each other or hated each other.

But we had the thing that army families have. Your family was your unit. The men on the bases were taught total loyalty to their units. It was the most fundamental thing in their lives. The boys copied them. They translated that same intense loyalty onto their families. So time to time you might hate your brother, but you didn’t let anybody mess with him. That was what we had, Joe and I. We had that unconditional loyalty. We stood back to back in every new schoolyard and punched our way out of trouble together. I watched out for him, and he watched out for me, like brothers did. For sixteen years. Not much of a normal childhood, but it was the only childhood I was ever going to get. And Joe was just about the beginning and end of it. And now somebody had killed him. I sat there in the back of the police Chevrolet listening to a tiny voice in my head asking me what the hell I was going to do about that.

FINLAY DROVE STRAIGHT THROUGH MARGRAVE AND PARKED up outside the station house. Right at the curb opposite the big plate-glass entrance doors. He and Roscoe got out of the car and stood there waiting for me, just like Baker and Stevenson had forty-eight hours before. I got out and joined them in the noontime heat. We stood there for a moment and then Finlay pulled open the heavy door and we went inside. Walked back through the empty squad room to the big rosewood office.

Finlay sat at the desk. I sat in the same chair I’d used on Friday. Roscoe pulled a chair up and put it next to mine. Finlay rattled open the desk drawer. Took out the tape recorder. Went through his routine of testing the microphone with his fingernail. Then he sat still and looked at me.

“I’m very sorry about your brother,” he said.

I nodded. Didn’t say anything.

“I’m going to have to ask you a lot of questions, I’m afraid,” he said.

I just nodded again. I understood his position. I’d been in his position plenty of times myself.

“Who would be his next of kin?” he asked.

“I am,” I said. “Unless he got married without telling me.”

“Do you think he might have done that?” Finlay asked me.

“We weren’t close,” I said. “But I doubt it.”

“Your parents dead?”

I nodded. Finlay nodded. Wrote me down as next of kin.

“What was his full name?”

“Joe Reacher,” I said. “No middle name.”

“Is that short for Joseph?”

“No,” I said. “It was just Joe. Like my name is just Jack. We had a father who liked simple names.”

“OK,” Finlay said. “Older or younger?”

“Older,” I said. I gave him Joe’s date of birth. “Two years older than me.”

“So he was thirty-eight?”

I nodded. Baker had said the victim had been maybe forty. Maybe Joe hadn’t worn well.

“Do you have a current address for him?”

I shook my head.

“No,” I said. “Washington, D.C., somewhere. Like I said, we weren’t close.”

“OK,” he said again. “When did you last see him?”

“About twenty minutes ago,” I said. “In the morgue.”

Finlay nodded gently. “Before that?”

“Seven years ago,” I said. “Our mother’s funeral.”

“Have you got a photograph of him?”

“You saw the stuff in the property bag,” I said. “I haven’t got a photograph of anything.”

He nodded again. Went quiet. He was finding this difficult.

“Can you give me a description of him?”

“Before he got his face shot off?”

“It might help, you know,” Finlay said. “We need to find out who saw him around, when and where.”

I nodded.

“He looked like me, I guess,” I said. “Maybe an inch taller, maybe ten pounds lighter.”