"I know that well enough. He won't give me any supper, I'm afraid."

"Then I'll try to get some supper to you."

"Is the key of this door on a hook outside?"

"No. If it was I'd have the door open long ago."

Sam gave a deep sigh, and then began to dance around once more to keep
warm.

"Perhaps I can find a key to fit this lock," went on Tom. "I know there
are keys in some of the other doors."

He ran off and soon returned with four keys, which he tried, one after
another. The third was a fair fit, and with an effort the bolt of the
lock was forced back.

"Hurrah! the door's open!" exclaimed Tom. "Now you can go where you
please."

"Then you wouldn't stay here?" questioned Sam anxiously.

"Not much! I'd hide in one of the dormitories, and I wouldn't show
myself until Captain Putnam gets back. I'll see to it that you get
something to eat, and when the captain returns you can tell him that if
you had remained in this place all night you would have been frozen to
death."

Sam was willing enough to take Tom's advice, and was soon in the