“I told her I was interested in a couple of particular cases.”

“Oh, okay. She said you wanted to know about the OCME electives. Never mind. Listen, we have radiation detectors down in the mortuary area just in case, and nothing has sounded recently, especially not yesterday. I know that for a fact.”

“Well, that’s not surprising because the isotopes we’ve been using in the lab were all alpha emitters for targeted alpha therapy such as bismuth-213 and lead-212, which wouldn’t be picked up by general radiation detectors made for beta and gamma radiation.”

Pia smiled again and McGovern nodded knowingly, even though he had no idea what she was talking about. The last time he read much about radioisotopes was over a decade earlier when he was studying for his boards. McGovern looked pensive. Pia thought he was thinking about alpha particles. In fact McGovern was running a mental checklist. At first he’d questioned himself, but no, he was certain. He’d never seen a better-looking medical student, which was saying something as they were, in his opinion, getting better-looking every year, at least at NYU, which was where most of the medical students he met in his position as OCME teaching coordinator were from. He should spend more time at Columbia, he thought.

“So you just want to make sure Rothman’s and Yamamoto’s bodies are not emitting alpha radiation?” McGovern asked, just to be certain he understood.

“That’s right. That’s why I brought this Geiger counter. It’s specially programmed for detecting alpha particles.”

McGovern went back to his monitor.

“Let’s see. There might just be a problem. The bodies of infectious cases like these don’t stay around here very long, for obvious reasons.... Yup!” he said suddenly, tapping the screen with a forefinger. “Just as I thought. There’s a problem. As I said, in serious infectious cases like typhoid fever and a few other communicable diseases, the bodies aren’t held here in the OCME. After the autopsies are completed and the cause and manner of death corroborated, the bodies are released to the families and the respective funeral homes and cleared for cremation. In other words,” McGovern said, “the researchers’ bodies are no longer here. You’re about twenty hours too late.”

Pia mouthed a repressed “shit,” which McGovern caught and appreciated. He associated colorful language with feistiness, and he loved feistiness in a woman. It was his hope that now that he’d ascertained the bodies were no longer at the OCME, perhaps they could move on to more interesting topics, like Friday-night plans. Meanwhile, Pia stared into the middle distance, thinking. She could hardly reproach herself; twenty-four hours ago, when the bodies left, she’d never even heard of polonium-210.