On the way up, the car’s air conditioner gave up shortly after Bakersfield. It was September and hot as I pushed through the middle of the state. Pretty soon I could feel my shirt start to stick to the vinyl seat. I pulled off my tie and unbuttoned my collar. I didn’t know why I had put a tie on in the first place. I wasn’t on the clock and I wasn’t going anywhere that required a tie.

I tried to ignore the heat and concentrate on how I would try to handle Seguin. But that was like the heat. I knew there was no way to handle him. Somehow it had always been the other way around. Seguin had the handle on me. One way or the other that would end on this trip.

I turned my wrist on the steering wheel and checked the date on my Timex. Exactly ten years since the day I had met Seguin. Since I had looked into the cold green eyes of the killer and known I was looking into the abyss.

The case began on Mulholland Drive, the winding snake of a road that follows the spine of the Santa Monica Mountains. A group of high schoolers had pulled off the road to drink their beer and look down upon the smoggy City of Dreams. One of them spotted the body. Nestled in the mountain brush and the debris of beer cans and tequila bottles tossed down by past revelers, the girl was nude, her arms and legs stretched outward in some sort of grotesque display of sex and murder.

The call came to me, Detective Harry Bosch, and my partner, Frankie Sheehan. At the time, we worked out of the LAPD’s Robbery-Homicide Division.

The crime scene was treacherous. The body was snagged on an incline with a better than sixty-degree grade. One slip and a person could tumble all the way down the mountainside, maybe end up in somebody’s hot tub down below or on somebody’s concrete patio. We wore jumpsuits and leather harnesses and were lowered down to the body by firemen from the 58th Battalion.

The scene was clean. No clothes, no ID, no physical evidence, no clues but the dead girl. We didn’t even find any fibers that were going to be useful. This was unusual for a homicide.