No man had seen him.

"Then I tell you," said the corporal to Silas, "he is hid somewhere up stairs, or else he has escaped; for I can swear I arrested him."

"I can swear you was drunk," said Silas, much disgusted. "You have let the wust man of the lot slip through your fingers; for it's certain he ain't here."

Penn trembled for a minute. But both Ropes and the corporal passed him without a suspicion of what was agitating him; and he felt immensely relieved when they returned up the stairs, and the mystery remained unexplained.

The prisoners in the cellar were about twelve in number. Nearly all were sturdy, earnest men. Penn noticed that they were not cast down by their misfortunes, but that they whispered among themselves, exchanging glances of intelligence and defiance. At length Captain Grudd came to him, and taking him aside, said,—

"Well, professor, what do you think of the situation?"

"We seem to be at the mercy of the villains," replied Penn.

"Not so much at their mercy either, if we choose to be men! What we want to know is, will you join us? And if there should be a little fighting to do, will you help do it?"

Penn grasped his hand. "Show me that we have any chance of escape, and I am with you!"

"I thought you would come to it at last!" Grudd smiled grimly. "What we want, to begin with, is a few handy weapons. But we have all been disarmed. Have you anything? I noticed they did not search you, probably because you came voluntarily and gave yourself up."