"I should say so!" yelled Paul. "They've lost control of her!" The big biplane was in serious difficulties, for it gave a lurch, turned turtle, and then, suddenly righting, shot downward for the river. "They're going to get a ducking, all right!" cried Innis. "Yes, and they may be killed, or drowned," added Paul. "I'll do what I can to save 'em!" murmured Dick, as he turned on more power, and headed his boat for the place where the aircraft was likely to plunge into the water. Hardly had he done so when, with a great splash, and a sound as of an explosion, while a cloud of steam arose as the water sprayed on the hot motor, the aircraft shot beneath the waves raised by the rapidly-whirling propellers. "Stand ready now!" "Get out a preserver!" "Toss 'em that life ring!" "Ready with the boat hook! Slow down your engine, Dick." The motor-boat was at the scene of the accident, and when one of the occupants of the wrecked airship came up to the surface Dick made a grab for him, catching the boat hook in the neck of his coat. The next instant Dick gave a cry of surprise. "Larry Dexter--the reporter!" he fairly shouted. "How in the world--" "Let me get aboard--I'll talk when--when I get rid of--of--some of this water!" panted Larry Dexter. "Can you save the others?" "I've got one!" shouted Paul. "Give me a hand, Innis!" Together the two cadets lifted into the motorboat a limp and bedraggled figure. And, no sooner had he gotten a glimpse of the man's face, than Innis Beeby cried: "By Jove! If it isn't my cousin, Whitfield Vardon!" CHAPTER II THE COLONEL'S OFFER Two more surprised youths than Dick Hamilton and Innis Beeby would have been hard to find. That the young millionaire should meet Larry Dexter, a newspaper reporter with whom he had been acquainted some time, in this startling fashion was one thing to wonder at, but that Innis should help in the rescue of his cousin, of whom he had just been speaking, was rather too much to crowd into a few strenuous moments. "Whitfield!" gasped Innis, when his cousin had been safely gotten aboard. "How in the world did you get here? And was that your craft?" "Yes. But don't stop to talk now!" gasped the rescued aviator. "My machinist, Jack Butt, went down with us! Can you see anything of him?" Eagerly the eyes of the cadets searched the waters that had now subsided from the commotion caused by the plunging down of the wrecked aircraft. Then Dick cried: "I see something moving! Right over there!" He pointed to where the water was swirling, and the next moment he threw in the clutch of his motor. The propeller churned the water to foam, and the craft shot ahead. The next instant a body came to the surface. A man began to strike out feebly, but it was evident he was nearly drowned. "That's Jack! That's my helper!" cried Mr. Vardon. "Can you save him?"