body bored into the rocks and set off a blast! I must investigate this, and if it looks promising I'll call the others. No use in exciting Roger unless it's worth while."
Dave climbed up to the split and peered within. All was so dark that he could see but little. Yet he made out what looked to be a fairly level bit of flooring and he swung himself to this, first, how ever, placing his handkerchief on a rock outside, for it had been agreed that if anybody went into any sort of opening he should leave something behind, so that the others, coming that way, might know where he was.
Each of the party had provided himself with a dry stick of wood, to use for a torch if one was required, and Dave now lit the stick he carried and swung it into a blaze. With this in hand he commenced an inspection of the opening he had discovered.
The cave, if such it can be called, proved to be long and narrow,—little more than a split in the rocks. At some points the roofing was out of sight. The flooring, too, was irregular, and our hero had to proceed with care, for pitfalls were numerous and he had no desire to tumble into one of these.
"This mountainside is a good deal like Cave Island," he muttered, as he advanced. "That was honeycombed with caves and so is this. No
