Although I was assigned to the Seventh District as a senior detective, my job as liaison with the FBI gave me some extra status and also the freedom to occasionally work without too much supervision or interference. My mind was running free, and I’d already made some associations between Nina’s murder and at least some of the unsolved killings. First, there had been no identification on the victims at each crime scene. Second, the bodies had frequently been dumped in buildings where they might not be found quickly. Third, not a single witness had seen anyone who might be a suspect. The most we ever got was that there had been traffic, or people out on the street, where one of the bodies had been found. That told me that the killer knew how to blend in, and that he possibly was a black man.

Around six that night, I finally headed home. This was supposed to be my day off. I had things to do there, and I was trying to balance the demands of Job and homelife as best I could. I put on a happy face and headed inside the house.

Damon, Jannie, and Nana were singing “Sit Down, You’re Rockin’ de Boat” in the kitchen. The show tune was music to my ears and other essential parts of my anatomy. The kids looked happy as could be. There is a lot to be said for the innocence of childhood.

I heard Nana say, “How about ‘I Can Tell the World’?” Then the three of them launched into one of the most beautiful spirituals I know. Damon’s voice seemed particularly strong to me. I hadn’t really noticed that before.

“I feel like I just walked into a story by Louisa May Alcott,” I said, laughing for the first time that long day.

“I take that as a high compliment,” Nana said. She was somewhere between her late seventies and early eighties now, but not telling — and also not showing — her age.

“Who’s Louise Maise Alcott?” Jannie said, and made a lemon-sucking face. She is a healthy little skeptic, though almost never a cynic. In that way, she takes after both her father and her grandmother.

“Look it up tonight, little one. Fifty cents in your pocket for the correct answer,” I told her.

“You’re on.” Jannie grinned. “You can pay me right now if you like.”

“Me, too?” Damon asked.

“Of course. You can look up Jane Austen,” I said to him. “Now what’s with the heavenly harmonizing? I like it very much, by the way. I just want to know what the special occasion is.”

“We’re just singing while we prepare dinner,” Nana said, and stuck up her nose and twinkled her eyes. “You play jazz and the blues on the piano, don’t you? We harmonize like angels sometimes. No special reason necessary. Good for the soul, and the soul food, I suppose. Can’t hurt.”