Along the canal, apartment facades are muted pastel shades, and brick is exposed where the plaster is worn away. A polished teak boat passes beneath an arched brick bridge, and the captain stands, and the bridge is very low, and his head almost touches it. He works the throttle with his thumb.

“Yes, she did refer a patient to me. Otto has asked me about it,” Dr. Maroni says. “Last night I told him what I know. At least, what I’m at liberty to say.”

“It would have been nice if you’d told me.”

“Now I’m telling you. If you hadn’t brought it up, I still would be telling you. I saw him several times in the space of several weeks. Last November,” Dr. Maroni says.

“He calls himself the Sandman. According to Dr. Self. Does that sound familiar?”

“I know nothing about the name Sandman.”

“She says that’s how he signs his e-mails,” Benton says.

“When she called my office last October and asked me to see this man in Rome, she didn’t supply me with any e-mails. She never said anything about him calling himself the Sandman. He never mentioned the name when he saw me in my office. Twice, I believe. In Rome, as I’ve said. I have no information that would lead me to conclude he’s killed anyone, and I told Otto the same thing. So I can’t give you access to his file or my evaluation of him, and I know you understand this, Benton.”

Dr. Maroni reaches for the decanter and refills his glass as the sun settles into the canal. Air blowing through the open shutters is cooler, and the canal smell isn’t as strong.

“Can you give me any information about him at all?” Benton asks. “Any personal history? A physical description? I know he was in Iraq. That’s all I know.”

“I couldn’t if I wanted to, Benton. I don’t have my notes.”

“Meaning there could be important information in them.”

“Hypothetically,” Dr. Maroni says.

“Don’t you think you should check?”

“I don’t have them,” Dr. Maroni says.

“You don’t have them?”

“Not in Rome, is what I mean,” he says from his sinking city.

Hours later, the Kick ‘N Horse Saloon, twenty miles north of Charleston.

Marino sits across the table from Shandy Snook, both of them eating chicken-fried steak with biscuits, gravy, and grits. His cell phone rings. He looks at the number on the display.

“Who is it?” she says, sipping a bloody Mary through a straw.

“Why can’t people leave me alone?”

“Better not be what I think it is,” she says. “It’s seven-damn- o’clock, and we’re eating dinner.”

“I ain’t here.” Marino pushes a button to silence the phone, acts like it doesn’t bother him.

“Yeah.” She loudly slurps up the last of her drink, reminding him of Drano unclogging a sink. “Nobody home.”