"Nip down below and see if she's started a seam," he ordered.

The men, who had been ejected from their quarters by the concussion, hurried to the fore-peak. As they opened the cuddy-hatch the half-dozen terrified German prisoners made a wild scramble to gain the deck.

"Who told you blighters to come out?" shouted George, and, abandoning the wheel, he rushed forward, seized the foremost Hun by the scruff of the neck and hurled him violently against the next man. The floor of the fore-peak was covered with a squirming heap of now thoroughly cowed Huns, to whom the apparition of the stalwart, angry Englishman was more to be dreaded than being shaken like peas in a pod in the dark recesses of their temporary prison quarter.

"Is she making anything?" enquired George anxiously, as he returned to take charge of the helm.

"Hardly a trickle," was the reassuring reply. "Whack her up, mate."

The coxwain proceeded to order full speed ahead, and the little craft tore back to the Calder in order that the news of her skipper's disappearance might be reported.

To the surprise of the patrol-boat's crew they discovered their sub, arrayed in borrowed garments, standing aft and motioning to the boat to come alongside.

It was easier said than done. The coxwain's faith in his capabilities was weak, notwithstanding his resolution. At the first shot he carried too much way, reversing engines when the little craft was fifty yards ahead of the destroyer. The second attempt found him a like distance short, with no way on the boat. At the third he dexterously caught a coil of rope hurled from the Calder, and succeeded in hauling alongside.

"We've just rammed a submarine, sir," reported the coxwain, saluting, delivering the information in a matter-of-fact manner, as if destroying enemy craft in this fashion were an everyday occurrence.

Sub-lieutenant Stickleton having regained his command, the motor-boat piloted the Calder to the scene of her exploit. A diver descended in nine fathoms, and quickly telephoned the confirmatory information that a U boat was lying with a list to starboard on the sand, with a rent in her conning-tower--the indirect result of the involuntary bathe of Sub-lieutenant Stickleton, R.N.R.