"And the water's deep there," declared Bobby. "It's a regular diving hole."
"Now, you've lost it!" cried Dora, sadly. "But you can wear mine sometimes."
"Don't you fret, Miss—which is it, Dora, or Dorothy?" demanded Billy.
"I'm Dorothy," admitted the twin in question, climbing sadly down to the shore again.
"That's all right, Dorothy," said Short and Long. "Leave it to me. I put my bathing trunks in my pocket and while you girls are spreading the luncheon over yonder I'll dive and see if I can get the pin. It's some muddy down there, I guess; but I can stay under water nearly two minutes—can't I, Chet?"
"So you have, Billy. You try it. And if you can't, maybe Lance or I can get it."
Billy retired into the nearest cave to remove his clothing and the girls returned to the landing. In five minutes Billy made a famous dive into the deep hole under the boulder. He did not stay down two minutes, for Lance timed him. And he came up without the pin, but when he got his breath, he gave voice to a shout that started the echoes.
"What's the matter with you, Billy?" demanded Chet.
"I've found it!" cried the small boy.
"Good! give it to me and I'll run with it to Dorothy," said Lance.