The latter went aft with Chief Engineer Blaine for the hull inspection and returned in a few moments to say that, so far as could be observed from the interior, she had not been dealt a severe blow. The executive officer ventured the opinion that the keel of the destroyer had brushed along the aft deck, thus accounting for the fact that the submarine had suddenly been tilted downward at the stern. "We'll not dare submerge too deep," said Lieutenant McClure. "Pressure against our hull increases, you know, at the rate of four and a quarter pounds to the square inch for every ten feet we submerge. It may be our plates were weakened by that collision. We'll go down to one hundred feet and lie there until these ships get out of the way." The depth dial showed eighty feet. More water, accordingly, was shipped and the _Dewey_ slipped away to the desired depth, when the intake of ballast ceased and the tiny vessel floated alone in the sea. Determined to take no more chances with the Kaiser's navy until he had ascertained the true condition of his own vessel, Lieutenant McClure decided to lie-to here in safety. When the raiders had departed he would ascend and make a more detailed external inspection of the hull. It was half-past two. Jean Cartier superintended the distribution of hot coffee and light "chow" and the crew made themselves comfortable in their submarine home. Half an hour later, when it had been determined by the telephones that the German ships had moved on westward, the _Dewey_ began again to ascend the depths. Early dawn was streaking the sky with tints of orange gray when at last the submarine poked its periscopes above the waves. Not a ship was in sight; there was not a trace of the battle cruiser that the _Dewey_ had sent to her doom during the earlier hours of the night. "Didn't have a chance, did they?" Ted said to his churn in contemplation of the fate of the German warship. Jack felt different about it. "Sure they had a chance," he answered. "They would have gotten us if we hadn't landed them first." "Do the other fellow as you know he would do you," Jack philosophized. As the _Dewey_ emerged again on the surface with her deck and super-structure exposed, the ship's wireless aerials were run up and she prepared to get in touch with the United States fleet. Jack crept into the wireless room that he might better understand what was going on. Lately he had been learning the wireless code and familiarizing himself with the operation of the radio under the kindly instruction of Sammy Smith. "You never know when knowledge of these things is going to stand you in good stead," remarked Jack when he had applied to Sammy for "a bit in electricity." Once more the hatches were opened and the crew swarmed out to stretch their limbs and get a breath of fresh air again. Lieutenant McClure hastened to examine the deck of the _Dewey_ to ascertain whether any damage had been done in the collision with the destroyer.