“I am sure I would. Heou! let us get out as soon as we can!”

Taking up the light, they proceeded down the narrow passage. It was a low cavern, so low that in many spots even Gus, the shorter of the two, was compelled to stoop.

“Hold on,” cried Oliver who was in advance; “here is a stream of water. We don’t want to be drowned!”

“Indeed not! Is it deep?”

Oliver made an examination with his hands.

“Quite deep. But here is a spot that is not very broad. I can jump it easily, and I guess you can do the same.”

Holding out the firebrand, he made the leap, and landed safely upon the other side.

“Now you,” he called to Gus; and in a moment they were together again.

It was not long before they entered what appeared to be a large chamber. Here, from some place far above, streamed in a faint light.