"Luck for me," murmured Sam.
"I see my name on ze wrappair," went on Professor Socrat. "Zen I open it an' I see ze name of Mr. Grimm. I go to heem. Ha! Zings begin to what you call happen—after zat!"
"Vamoose!" whispered Sam. "I guess we've seen all the fun. They'll disperse now. Everyone to his room and undress. Be studying in bed. If there's an investigation we can't be accused."
A little later the boys heard Professor Grimm tramping to his room, muttering dire vengeance on his tormentors. They heard him open his window and throw something out. It fell with a tinkle to the ground.
"The bell," whispered Sam, as he hurried to his room.
"How did you manage it?" asked Jack an hour or so later when Sam had entered his chum's apartment, matters having quieted down.
"It was too easy," explained Sam. "I did up the bell, and left it with Socrat. I purposely addressed it double. I figured out what would happen. Then I sent a fake note to Bagot, telling him Socrat wanted him. It came out better than I expected."
"I hope there's no trouble over it," Jack said.
There was none, for neither of the professors cared to have the facts made public, and Bagot did not want to let it be known that he had been fooled.