Captors and captive had alike gone, no one could tell where.

A consultation was held, and it was decided to explore the cave before going back to the Dart.

The descent into the cold spot was not easy, and more than once a member of the party was in danger of breaking a leg.

The bottom reached they made their way to the place where the men had been at work with their axes.

They had cut out a square hole two by three feet and six feet deep.

Gazing down into the bottom of the hole, Bob gave a shout:

"The stone chest, as sure as I live!"

"What!" cried the captain.

He too looked into the opening.

There rested what at first looked to the a square stone of a whitish-blue color.