et me, boys!" shouted Jimmie.

A splash told that he had gone overboard. His companions crowded eagerly
to the rail, watching for his reappearance. In a moment they were
relieved to see his red head come up close to the spot where the other
had sunk. Emptying his lungs of the pent up air with a loud "Whoosh!" the
boy instantly refilled them to plunge again under water.

To the intense satisfaction of those on board the schooner he again came
quickly to the surface, this time dragging by the hair the boy to whose
rescue he had gone. Swimming on his back, using but one hand, Jimmie
slowly brought the other lad to a position where he could reach the buoy
flung to him by Ned's strong arm.

Harry had already made a bowline in a bight at the end of a line. This he
passed over the side to Jimmie, who succeeded without difficulty in
getting the loop over the shoulders of the rescued lad.

Soon both were on deck, where they received the attentions of all hands.
Captain von Kluck insisted upon giving the newcomer a draught of
"schnapps" to assist in the reviving process. As the fiery liquor burned
its way down his throat the lad coughed violently.

Choking and spitting the lad clawed at his burning mouth and throat.
Evidently he thought the cure worse than the disease.

"Let's get into the cabin," suggested Jimmie. "I'm freezing!"

"Sure enough!" cried Ned. "How thoughtless of us! Captain," he added,
"can you have the steward bring us some coffee?"

Roaring for the steward to perform this service, the captain picked up
the nearly drowned lad in his strong arms. He deposited the boy on a
locker in the cabin, then stood aside to permit his passengers to
administer such assistance as they might.

Ned stepped forward to begin operations. With a cry he bent over the boy.
Wonderingly the others crowded forward.

"Frank!" cried Ned, seizing the lad by the shoulders. "Frank! Speak to
me! Frank, how did you get here?"

"Who is it?" asked Jimmie, elbowing his way into the group to a position
where he could see the recumbent figure. "Why," continued the boy in a
tone of amazement, "if it ain't old Frank Shaw of New York!"

A cup of steaming coffee at this moment brought by the steward was
offered to the newcomer, who drank eagerly. He glanced about the group
with a faint smile in answer to their puzzled looks.

"Look out for the 'U-13', boys!" he said.

CHAPTER VIII

MORE ABOUT THE "U-13"

"Frank Shaw!" cried Jimm