Pretty soon Jay was over the side again and dangling in the water, carrying the crowbar in one hand and the mushroom anchor in the other. Instantly his feet touched bottom, he set off in the direction of the periscope and soon came upon it by intuitively guiding along the course that he knew would take him to the goal of his aspiration. The water was fairly clear and the undertow still setting strong along the ocean bed.
"Now we'll see," he murmured, as he set down the anchor within easy reach and took the crowbar, commencing to dig directly alongside the periscope pole. It is not easy thus to dig on the sandy bottom of the sea; one must go in sidewise with a due allowance for the currents instead of directly down.
Little by little the sand was dislodged and turned away. And so soon as it became loosened up and was stirred around the water dragged at it and skitted it away freakily, dissolving it into particles that filled all the sea round about the diver. Pretty soon Jay was the center of a veritable submarine sand tornado.
"Good enough; just what I wanted," he chuckled.
All at once as he was digging away the crowbar struck something hard. With a firm impact it brought up against a solid substance. The diver's own buoyancy and the swing of the rolling sea kept him from digging with much force, but pecking away with determination Jay soon accomplished his purpose, and that was to make a considerable excavation over the hard metallic substance that his crowbar had encountered.
"How do you do, Mr. Submarine," he laughed. For what he had encountered with his crowbar was nothing more or less than the top of the U-boat's conning tower!
Setting the anchor in the hole, he lashed the crowbar to his body again and gave the signal to be hoisted.
"See you in the morning," he called to the sunken submarine.