I laughed. “You’re thinking of storybook cops like Adam Dalgliesh or John Rebus, endlessly second-guessing themselves. When Tony needed to unwind, he’d watch the Cubs or play ball himself, have a beer with your uncle Bernie. He didn’t brood or write poetry.”

“But didn’t he leave you anything?” Petra demanded. “Like, I don’t know, his prize bowling ball or something?”

“Neither that nor his polka-playing accordion. Where do you get your stereotypes, Petra?”

“Take it easy, doll,” Mr. Contreras admonished me. “Lots of guys bowl. Not that I liked it much. Pool for me. That, and the horses. Although my ma thought it’d turn me into a dropout and a drunk.”

My dad hadn’t left much. Unlike a lot of cops, he wasn’t a gun collector: he’d had only his service revolver, which I turned in when he died. I’d kept his sole backup, a 9-millimeter Smith & Wesson, for my own use. I’d given his shield to Bobby Mallory.

I had the photo album I’d looked at the other night, some softball memorabilia, a plaque featuring the eight-pound coho he’d caught in Wolf Lake. I’d kept some of the tools from the little shop he’d had behind our old kitchen. I even used them occasionally to repair a broken sink trap or build a simple piece of shelving. Other than that, all I could remember keeping was his dress uniform, which I’d stored in a trunk with my mother’s music and her burnt velvet concert gown.

Petra was all for digging into the mementos then and there. When she heard I hadn’t looked at the trunk for years, she was sure there was something I’d forgotten that would explain everything. Mr. Contreras agreed with her. “You know how it is, doll, you put things away, you forget what they were. Same with Clara’s things. When I went to look for her jewelry to give to Ruthie, I found I’d put all kinds of things in boxes, even her false teeth!”

“I know, I know,” I agreed wearily. “My dad probably had the secret plans for building a gasless car, but I’m not going to look for them tonight. I’m beat. I’m going to bed.”

Petra had drunk a fair amount of Spumante, which made her argumentative and insistent on going to the third floor at once. I got tired of arguing long before she did, and announced I was going to bed. I suggested that she stay the night. I didn’t want her driving in the state she was in. Finally, around eleven, when Mr. Contreras chimed in on my side, she let us put her into a cab.