“Very well, Mr. Weeks. They won't get ahead of us. But I should feel a bit safer if you'd let me put a man by the vault.”

Jim shook his head.

“There's such a thing as doing it too well, Mallory. And by all means I hope that you won't do that.”

He looked closely at the detective, who glanced away with a cautious nod.

That evening after dinner, Jim telephoned for Mattison, the Superintendent, and a long talk ensued in Jim's room at the hotel. Neither he nor Harvey wasted time in recounting the experiences of the day; they had too many plans for the night. As Jim had said, it was necessary to lose the books, and to lose them thoroughly. It was equally important that the action should not be confided to any ordinary employee. The fewer men that knew of it, the safer Jim would be, and so he finally decided to confine the information within its original limits.

“You two are lively on your feet,” he said. “And it is a good deal better for you to do it.”

“How about the detectives?” asked Mattison.

“You'll have to keep out of their way. Mallory won't trouble you so long as you keep still; but remember, every man, detective or not, that catches you, makes one more chance for evidence against us.”

“But isn't the building surrounded?”

“No. There's only one man outside, and he is in front. You can go through the alley and climb up to the window—it's only the second floor. Mallory has orders to keep out of the vault room. He's over in your office, Mattison.”