A mile away was a small, speedy craft, sailing around the submarine. It seemed fairly to skim over the surface of the water, and cast the spray astern like a mist. It had come up unnoticed by the captain.

"Look at the little boat," shouted Ralph, who had now recovered and had moved to the open door.

The captain turned quickly toward the stern, waving the white flag in a frenzy. It must have been regarded as a remarkable thing to those on board the little cutter to see a German submarine hoisting a surrender flag. It seemed too good to be true. They evidently supposed the white flag was a ruse of some kind, for they did not venture nearer.

Meanwhile, the cruiser, which had fired the two shots, came up behind the little craft, and the latter cautiously steamed up. The small vessel was one of the speedy torpedo boat chasers, carrying two three-inch guns, and drawing less than six feet of water. The safety of these boats lies in their great speed and in the shallow draft, which prevents the submarine from reaching them with their torpedoes.

Once abreast the commander called out: "I am sending a boat for your officers."

"I have only one here, that we can get at, at present," shouted the captain.

"What is that?" asked the commander of the chaser.

"I have one of the chief officers in the conning tower, and the others are below," said the captain.

"Who are you?" asked the commander.

"Captain Leclere, of the French service," replied the captain.