With a touch that was almost a caress he let his fingers run slowly over the rough edges of the enlarged aperture. He inserted his head and shoulders into it and reached far out upon the other side, groping with a hand that found nothing, searching with eyes that saw nothing, and then he drew himself back into his dungeon and walked to its far end and sat down upon the floor and leaned back against the wall and waited—waited because he did not dare to pass that aperture to face some new discouragement.

It took him a long time to master himself, and then he waited again. But this time, after reasoned consideration of the matter that filled his mind.

He would wait until they brought his food and had taken away the empty receptacle—that he might be given a longer interval before possible discovery of his absence, in the event he did not return to his cell. And though he went often to the corner where the food was ordinarily deposited, it seemed an eternity before he found it there. And after he had eaten it, another eternity before the receptacle was taken away; but at last it was removed. And once again he crossed his cell and stood before the opening that led he knew not where.

This time he did not hesitate. He was master of his mind and nerves.

One after the other he put his feet through the aperture until he sat with his legs both upon the far side of the wall. Then, turning on his stomach, he started to lower himself, because he did not know where the floor might be, but he found it immediately, on the same level as his own. And an instant later he stood erect and if not free, at least no longer a prisoner within his own cell.

Cautiously he groped about him in the darkness, feeling his way a few inches at a time. This cell, he discovered, was much narrower than his own, but it was very long. By extending his hands in both directions he could touch both walls, and thus he advanced, placing a foot cautiously to feel each step before he took it.

He had brought with him from his cell the iron sliver that he had broken from the cover of the pot and with which he had scratched himself thus far toward freedom. And the possession of this bit of iron imparted to him a certain sense of security, since it meant that he was not entirely unarmed.

Presently, as he advanced, he became convinced that he was in a long corridor. One foot came in contact with a rough substance directly in the center of the tunnel. He took his hands from the walls and groped in front of him.

It was a rough-coated cylinder about eight inches in diameter that rose directly upward from the center of the tunnel, and his fingers quickly told him that it was the trunk of a tree with the bark still on, though worn off in patches.

Passing this column, which he guessed to be a support for a weak section of the roof of the tunnel, he continued on, but he had taken but a couple of steps when he came to a blank wall—the tunnel had come to an abrupt end.