"And who in the devil's name are you then?"

"A mere stranger."

"Prove it!"

"Take the ring, and the lady will not recognize it."

"We shall see," said the ruffian, "but we will take the hundred ducats now to pay for any trouble you have put us to."

His belt was stripped off, and its golden contents ripped out. The victim was untied, first having been completely disarmed. The three men entering the boat, pushed off in the direction from which they had entered.

The island prisoner watched the receding light as it flashed its long rays on the water, illumined the arches of the roof, and lit the crouching figures in the boat. The multiplying pillars became like a solid wall as the light receded, until at length the darkness was complete. The sound of the boat as it scratched against the stone at the landing, gave place to the most oppressive silence.

To attempt escape in the direction of the entrance would be folly. If he could find his way his captors would doubtless be on guard and easily overpower him, as he would have to wade or swim. But to remain where he was would be as hazardous, for the wretches would not risk exposure for the sake of the hundred ducats they had secured; but would probably return and put him out of the way of witnessing against them.

As he meditated, a low rumble like distant thunder, ran along the arches. "Some passing vehicle in the city above," he concluded.

A light drip, as of a bat's wing touching the water! Another! and another! "Strange that they should be so regular!" thought the man. "There must be some inlet: I will explore."