"No, I won't do that, either," muttered Master Tom.
He stamped upon the wooden shell again. A faint halloo answered him, and the knocking on the inner side of the hollow tree was repeated.
"Come out! Come out!" shouted Tom. "Dive down through the water and get out. You'll be suffocated there."
But at first the prisoner seemed not to understand—or else was afraid to make the attempt.
"Oh, if I only had an axe!" groaned Master Tom.
"If you cut into that tree you might do some damage," said his sister, now so much interested in the prisoner that she got up and came near.
Ruth saw Helen's red cap high up on the bank and she scrambled up and got it, stuffing it under her coat again.
"We'll keep that out of sight," she said.
"If it hadn't been for that old red thing," growled Tom, "the bull wouldn't have chased us in the first place."
But all of them were thinking mainly of the person in the hollow of the old stump. How could they get this person out?"
And the answer to that question was not so easily found—as Tom had observed. They could not roll the stump over; they had no means of cutting through to the prisoner. But, suddenly,
