struggle under water. I freed myself, but when I came to the top I found
that my hand was clutching nothing but her empty jersey. There it is
now," chattered Ab, his teeth, knocking against each other, as he pointed
to the garment in question on the top of a distant wave. Then Ab sank.

For just an instant Dalzell thought Canty had gone below on purpose. Dan
swam closer, to be of assistance. Then he saw the bubbles of air coming
up rapidly.

"Cantys given out--he's going to drown!" gasped Midshipman Dan,
with horror.

Like a flash Dan dived below, found and clutched at Canty. The young man
returned the grip with interest, but Midshipman Dalzell struggled to the
surface with him. Ab Canty was exhausted, out of his head and altogether
past reasoning. Dan hated to do it, but he had to strike the young man in
the forehead. Canty gave a gasp and ceased to resist.

Dave Darrin, watching, had run the boat up close alongside as soon as the
struggling pair appeared above the waves.

"You'll have to take him in, Davy," announced Midshipman Dalzell. "Canty
isn't strong enough to tow behind. And I'm coming aboard for a fresh look
before I dive for Miss Wright."

"You're going to stay aboard and manage the boat," retorted Darrin
quietly. "I'm going in next."

"Oh, all right, if you want to," half grumbled Dan. "But I'm just
beginning to get used to it and to like it."