Della Street ceased waltzing, said scornfully, “That’s the trouble with you, you have no romance. You’ve let life get you into a business rut, and just when I was beginning to tingle you start bringing up murders! Now the boss will talk shop — and we were having such a good time!”

Drake said, “I’ve been having a great time stalling Mrs. Gentrie for you folks. Tragg arrested her boy tonight. She’s frantic. She called me around midnight I told her you’d be in here around half past two or three o’clock. She said she’d wait up for you. I said I didn’t think you’d see her tonight, but she said she’d wait up anyway.”

Mason said, “I might see her, at that.”

“She doesn’t know anything new, Perry. She’s just a frantic mother, trying to save her boy.”

Mason slid over on the edge of Drake’s desk. “Got any more coffee cups, Paul?”

Drake opened a drawer, pulled out some agateware mugs and said, “I can give you a couple of these. It’s all I ever use.”

Della Street said, “Don’t talk so much. Just pour.”

Drake turned the spigot on the percolator, drew out two big cups of golden brown coffee. “If you want cream or sugar,” he said, “you get neither. This is a business office.” He grinned.

Mason said, “What about Rodney Wenston, Paul?”

“I was trying to get you to tell you that he went to San Francisco right after Lieutenant Tragg’s visit. This time they must have known my man was watching, because Karr’s feet never touched the ground. They lifted him out of a car and into the plane as though he’d been a baby.”