Was not that his duty?
But he had never before experienced the anxiety of mind which disturbed him now.

Many a time had he issued warrants of arrest, without possessing even half the proofs which guided him in the present case.

He kept repeating this to himself; and yet he could not quiet his dreadful anxiety, which would not allow him a moment's rest.
He wondered why his people were so long in making their appearance.

He walked up and down the room, counting the minutes, drawing out his watch three times within a quarter of an hour, to compare it with the clock.
Every time he heard a step in the passage, almost deserted at that hour, he moved near the door, stopped and listened.

At length some one knocked.