Storri was heedful to give the signals agreed upon by rapping on the walls of the drain.

He had no desire to be killed in the dark by London Bill upon a theory that he, Storri, was the enemy, and so rapped out the signals handsomely, with a little hammer he had by him for the purpose, while still ten rods from the scene of operations.
London Bill was slowly, yet surely, boring forward with his tunnel.

The clay as it was dug must be dragged to the mouth of the tunnel in the willow basket, and cast into the stream; that was a process to require time.

However, time there was and plenty; London Bill would have his work in perfect trim against the Friday evening for which the final and decisive attack on the gold was scheduled.

The tunnel, as London Bill had said it must be, was about four feet high and three in width, and Storri found that he went in and out very readily by traveling on hands and knees.