The mystery was solved at last.

This no doubt led to underground chambers where the pigmies spent their days.

And now Frank believed that he had solved the mystery of Barney’s fate.

The Celt had no doubt fallen through one of the mysterious entrances into the underground abode of the pigmies.

The marble dais in the temple was then, after all, but a curious sort of entrance to the underground retreat.

By leaping upon it, one was quickly carried down to the depths below.

It had required something more than ordinary ingenuity to invent this clever door of stone so nicely balanced.

Certainly these remnants of a lost and almost extinct race were certainly far from being fools.

They were beyond doubt most clever and skillful mechanics, masons and artisans.

Frank was tempted to invade the underground retreat of the pigmies, but sober second thought forbade.