Battle led the way to the door.

“We’d best get out of here,” he said. “We’re keeping it locked still.”

He waited for the other two to pass through, and then turned the key and removed it.

“I opine,” said Mr. Fish, “that you are seeking for fingerprints?”

“Maybe,” said the superintendent laconically.

“I should say to that, on a night such as last night, an intruder would have left footprints on the hardwood floor.”

“None inside, plenty outside.”

“Mine,” explained Anthony cheerfully.

The innocent eyes of Mr. Fish swept over him.

“Young man,” he said, “you surprise me.”