"Just this, that there is someone else on it. Who or what it is I don't know."
And Jack went on to explain all that he had seen.
CHAPTER XXXIII.
THE SECRET AT LAST.
Mysteries are always uncomfortable. As Jack proceeded with his narrative, Dick and Tom looked nervously about them. Even the boys' two elders looked grave. The presence of a man on the island was almost inexplicable. But Jack's story was so circumstantial that there was no room to suppose that he might be mistaken. Besides, he had the bit of canvas to show, the scrap that he had taken from the thornbush.
After dinner Tom and Dick resumed their work of unloading necessaries from the Wondership. Jack and the two elder members of the party discussed plans.
"You haven't found any trace of mineral-bearing rock yet, have you, professor?" asked Jack.
The professor shook his head.