ongeon frequently was your guest. Now Mlle. de Longeon
has the plans of your submarine and your torpedo--plans which I took
the liberty of removing from the little cupboard over the desk in your
workroom."

Summers sprang forward but he recovered himself.

"I should have told you," wailed Pauline.

"How should you have known?" said Summers. In a moment he had lost his
life work and his love. Suddenly he straightened himself. The soldier
in him mastered the man.

"There is still a chance--one little chance," he said.

"To get out?" cried Pauline.

"Yes--through the torpedo tube."

She shuddered.

"I am going to make you do it," he said, "because it is the only
chance. The men will follow you. Harry's boat will be near."

"And you?"

"I do not matter any more. Come."

A gunner opened the great tube as Summers led Pauline into the torpedo
room. Obediently she entered the strange passageway of peril and of
hope.

"Goodbye," he said, "and good luck."

"Goodbye," she answered. "You are a brave man. You are as brave--
you are as fine--as Harry."

From the end of the torpedo tube a woman's form shot to the surface of
the water. Choking, dazed, but courageous, Pauline tried to turn on
her back and gain breath. But they were well out to seat and the waves
were crushing.

"What is that?" asked Harry, pointing and passing his glasses to the
boatman.

The man looked and without a word swung the craft about and put the
engine at top speed. And in a few moments Harry's strong arms drew her
from the water.

"My darling, what has happened?" he gasped.

"Don't think of me--think of them!" she begged, weakly. "They were
trapped--down there. There was a bomb--a plot--the machinery is
ruined. Harry, help them!"

The boatman who overheard Pauline's first cry of appeal, now came
forward respectfully. "There's a revenue cutter--the Iroquois--
coming out," he said, significantly.

Harry looked. "Splendid!" he cried. "Can we signal her?"

"No, but we can catch her?"

Shouts from a speeding motorboat brought the Government vessel to a
stop. Officers came to the rail and helped Harry and Pauline to the
deck.

"Ensign Summers and his crew are sunk in their submarine. The pumps
are gone. There was a bomb explosion. Can you get help?"

"Where are they?"

"You can pick up their buoy with a glass--there."

The chief officer looked through his glass. "Yes," he said. "You'll
come abroad, or k