Pomp’s coming, however, was in many ways a blessing to Harding.

The darky was enabled to cut the bonds which held his wrists, and set him free.

They quickly compared notes.

It was a conclusion that they were in the depths of a cavern, most likely connected with the treasure cave.

“In that case,” said Harding, hopefully, “why should we not try to at once find our way out?”

“Of cose,” agreed Pomp; “dat am de bery first ting.”

With this resolution they set out.

For hours they wandered through the mazes of the cavern labyrinth.

In one respect their quest was a more difficult one than Frank Reade, Jr.’s, for they had no torches to light their way.

They were obliged to make their way along by the sense of touch.