Again they went on, and now they were less than an eighth of a mile from where the rocky wall came to an end and the jungle took its place, leading, a short distance farther along, to the entrance to the little bay which Jack and Randy had navigated on the raft.
“What a lot of birds,” remarked Jack, as they went along close to the rocky cliff. “I never saw so many in my life.”
“It would be easy to get enough for a bird pot-pie—if a fellow wanted it,” added Andy, with a grin. Then, however, the fun-loving Rover shut his mouth tightly and began to rub his hurt ankle.
“Hurt very much, Andy?” asked Fred, kindly.
“It starts up every once in a while,” was the answer. “I don’t notice it, and then of a sudden it seems to go right back on me.”
“You’ll have to see a doctor—just as soon as we can get to where there is one,” put in his brother.
“I suppose so. But I’ll wait till we get home first.”
As they moved along both the boys and the lanky sailor kept their eyes on all the flat rocks which were passed. Presently Fred saw what he took to be the picture of an arrow carved on one of the rocks, and he pointed this out to the others. Close to the arrow grew some trailing vines from a small opening just above.
“Gee, that does look like an arrow!” cried Andy, with interest.
“Yes. But there were to be three arrows forming a triangle,” remarked his twin.