As they were rowing at a lazy rate, keeping up a slow, even stroke, Jack, who was keeping a lookout on the shore and steering at the same time, suddenly said, looking toward a mass of rocks which they had just come abreast:
"There looks to be a sort of cave in there, Dick. At any rate, there is a hole which seems to run in to some little distance. Suppose we explore it and see how far we can go."
"I'm in for anything that you are, Jack," replied Dick.
"All right, pull ahead, not too fast, and we'll have a look at the place."
"Pull ahead it is, Jack."
Jack was in the bow and he now steered the boat toward the opening in the rocks, which was quite big enough for them to enter, and they went on at a slow, steady gait, presently gliding into the water cave, for such it seemed, with plenty of room above and on both sides.
Jack turned his head now and then to see how they were progressing and if there were any obstructions in the way, and presently said:
"A little slower, Dick. It is getting darker in here now and I do not want to run into anything."
"Slower it is, Jack. It would not be any fun to stave a hole in the bottom of the boat. It doesn't belong to us."
"That would be reason enough for not daring, with some persons," said Jack with a low laugh. "They will take care of their own things, but are careless with those belonging to others."