“There are three women guards. One goes around the cells every hour.”

“How about the men guards?”

“They don’t go to A floor, but they’re around on the other floors every hour. Two to each floor.”

“How many in the building?”

“Ten guards on duty, ten off. Since the girl came, Flaggerty has brought down another twenty from Station Headquarters to guard the outside of the jail. It has plenty of protection right now.”

I studied the map for several minutes, then sat back and stared at Mitchell.

“If you wanted to get someone out of that jail,” I said, “how would you set about it?”

He shook his head. “I wouldn’t,” he said. “It ain’t possible.”

I handed him the four Cs, and after he’d fingered them and put them away in his pocket, I took out a thousand-dollar bill.

“Ever seen one of these?” I asked him.