“Yes,” replied Clifford; “it was a close call!”

“Indeed it was!”

“But for you I should have lost my life!”

Frank made signs to return to the Dolphin, but Clifford felt sufficient curiosity to ask:

“How about the boat?”

“There is but one way to get her off the reef.”

“And that——”

“I will explain when we get back to the boat.”

“All right!”

In a few moments they reached the rail. To their surprise they saw Barney in the vestibule, all in his diver’s suit.