so about to leap overboard at that moment, paused, raised his
revolver, took careful aim at Davis and fired. Davis uttered a hoarse
cry, dropped his own weapon, and crumpled up on the deck. Edwards smiled
grimly, dropped his revolver and leaped lightly into the water.

He came up a moment later beside Jack, who was treading water while he
awaited him.

"Which way, sir?" asked Edwards. "You know where we are. I don't."

"This," said Jack, "is the Thames. We'll have no trouble making shore.
Follow me."

Edwards did so and a few moments later both stood dripping on land.

"Now where to, sir?" asked Edwards.

"We'll have to hunt up Lord Hastings. He's gone to make his report to
the British authorities. By inquiring a bit we should have no trouble
finding him."

The lad was right. A subordinate officer directed them to the quarters
of General Hamilton, where Jack felt sure he would find his commander.
At the door of the general's quarters an orderly halted them.

"Is Lord Hastings here?" demanded Jack.

"He is closeted with the general," was the reply.

"Well," said Jack, "you tell him his first officer is here and wants to
see him immediately."

The orderly hesitated, but a second look at Jack and he did as
commanded. A moment later Lord Hastings dashed out, closely followed by
Frank.

"What's wrong?" he demanded.

"Nothing, only that we have been chased off the submarine," replied Jack
quietly. "Davis headed a conspiracy to capture the vessel and I was
unable to act quickly enough. Edwards and I escaped."

"And O'Brien and McDonald?" inquired Lord Hastings.

"Dead!"

"How about Davis and the others? Weren't you able to account for any of
them?"

"A few, sir," returned Jack briefly, "but Davis----"

"I think I got Davis, sir," Edwards interrupted quietly. "I took a shot
at him just before I went over the side. He went down."

"I'm glad to hear that," returned Lord Hastings. "He is too dangerous a
man to be at large. Besides, without him, the Germans will hardly get
very far."

He turned to General Hamilton, who had followed him from his room, and
added: "If you'll be so kind as to give me a detail of ten men, sir,
I'll go and see about this matter. It may be that we can recapture the
vessel."

General Hamilton acted quickly. He summoned an orderly and commanded
that ten men be placed at Lord Hastings' disposal immediately. The men
appeared on the run a moment later and Lord Hastings led them towa