The last card Bosch opened slowly and carefully, also knowing who it was from before seeing the signature. It was postmarked Tehachapi. And so he knew. It was handprinted on off-white paper from the prison’s recycling mill and the Nativity scene was slightly smeared. It was from a woman he had spent one night with but thought about on more nights than he could remember. She, too, wanted him to visit. But they both knew he never would.

He sipped some wine and lit a cigarette. Coltrane was now into the live recording of “Spiritual” captured at the Village Vanguard in New York when Harry was just a kid. But then the radio scanner-still playing softly on a table next to the television-caught his attention. Police scanners had played for so long as the background music of his life that he could ignore the chatter, concentrate on the sound of a saxophone, and still pick up the words and codes that were unusual. What he heard was a voice saying, “One-K-Twelve, Staff Two needs your twenty.”

Bosch got up and walked over to the scanner, as if looking at it would make its broadcast more clear. He waited ten seconds for a reply to the request. Twenty seconds.

“Staff Two, location is the Hideaway, Western south of Franklin. Room seven. Uh, Staff Two should bring a mask.”

Bosch waited for more but that was it. The location given, Western and Franklin, was within Hollywood Division’s boundaries. One-K-Twelve was a radio designation for a homicide detective out of the downtown headquarters’ Parker Center. The Robbery-Homicide Division. And Staff Two was the designation for an assistant chief of police. There were only three ACs in the department and Bosch was unsure which one was Staff Two. But it didn’t matter. The question was, what would one of the highest-ranking men in the department be rolling out for on Christmas night?