“Crime scene,” says Agent Kaiser. “Can’t disturb that. Anybody got a candy bar?”

A reluctant male voice says, “I got a Snickers. It’s my supper.”

“You on Atkins again?” Sean quips, and nervous laughter follows. “Cough it up.”

Everybody laughs now, grateful for the release of tension.

As I get to my feet, Sean reaches out to steady me. A paunchy detective steps forward and hands me his Snickers bar. I make a show of gratitude and accept it, though I know I have no blood sugar problem. This charade is witnessed by a rapt audience that includes Carmen Piazza, commander of the Homicide Division.

“I’m sorry,” I say in her direction. “I don’t know what happened.”

“Same thing as last time, looks like,” Piazza observes.

“I guess so. I’m okay now, though. I’m ready.”

Captain Piazza leans toward me and speaks softly. “Step out here with me for a moment, Dr. Ferry. You, too, Detective Regan.”

Piazza walks into the hallway. Sean gives me a warning glance, then turns and follows her.

The captain leads us into a study off the central hall, where she leans back against a desk and faces us, arms folded, jaw set tight. I can easily imagine this olive-skinned woman facing down armed street punks during her years in uniform.

“This isn’t the place to talk about complications,” she says, “so I’m not going to. I don’t know what’s going on between you two, and I don’t want to know. What I do know is that it’s jeopardizing this investigation. So here’s what we’re going to do. Dr. Ferry is going to go home. The FBI will handle the bite marks tonight. And unless the Bureau objects, I’m going to request that a new forensic odontologist be assigned to the task force.”

I want to argue, but Piazza has said nothing about my episode in the kitchen. She’s talking about something for which I have no defense. Something about which Sean told me not to worry. But why am I angry? Adulterers think they’re discreet, but people always find out.