From a height of five thousand feet the leader of the "air cavalry" suddenly turned the nose of his craft downward, and came volplaning toward the sea at a dizzy pace. Following suit, the remaining units of the attacking squadron dived to get within better range.

"Now, boys!" shouted Lieutenant McClure.

Time-fuse shells had been inserted in the "Twins," the breeches closed and the muzzles elevated to point at the fast-flying airships. At the aft gun Ted gripped the trigger ready to fire, while Mike Mowrey jammed his good right eye into the telescopic sight to make sure of his aim.

"Fire!" he yelled, and Ted, let her go. The shot sped away into the sky while the crew gazed eagerly upward to watch for the explosion. Soon the shell burst with a white puff of smoke.

"Little too far to the right," said the observer.

Now the aft gun spoke. From every vessel of the protecting fleet came answering shots as they belched their fury at the armada of the air. The dull gray of the night sky was lighted at intervals by the bursting of shells as the German air fleet soared forward over the allied naval fleet. Observers were hurling bombs from above and they were splashing into the sea on every side. One of them striking the hull of the Dewey would blow the ship into atoms!

"Keep it up, boys! Make every shot count!" sang out Commander McClure.

Mike Mowrey was growling because he was unable to make a hit. "Let's get one of 'em—-just one of 'em!" he bellowed in rage.

One of the winged fleet was circling almost overhead at this moment and seemed tantalizing near. With a twist of the wheel Mowrey swung the muzzle of his gun up a couple of inches and gave the signal again to fire. Following the shot for a moment the frenzied gunner was elated to note that the machine just above sagged suddenly to one side. Like a bird with a broken pinion it swerved drunkenly in its course and began slowly to come down. Sustaining wires had been cut by the shell fire from the Dewey and the airplane was out of commission.

"Guess that fellow is done for," said Mowrey.