“Yes, and so would that!” shouted Pep. “Jumping crickets! Fellows--look!” There had sounded a sharp explosion. At a certain spot a great cascade of water like the spouting of a whale went up into the air. A hiss of steam focussed in a whirling, swaying mass at one point. There was the echo of yells and screams. “What’s happened, I wonder----” began Randy. “I saw it!” interrupted an excited bather, who had ran out of the water. “A motor boat has blown up!” “Then those on board must be in danger of burning or drowning, boys,” shouted Frank. “To the rescue!” CHAPTER II THE MOTOR BOAT Frank Durham was just as practical as he was heroic. While the frightened people in the water were rushing up the beach in a panic, and strollers along the sands stared helplessly toward the scene of the accident, Frank’s quick eye took in the situation--and in a flash he acted. There was a reason why he was so ready-witted. In the first place he--and also Randy and Pep--had for an entire season been in actual service at the outing resort near their home town of Fairlands. It had been an experience that fitted them for just such a crisis as the present one. Boating on the lake had been the principal diversion of the guests. There had been more than one tip-over in which Frank and his chums had come to the rescue. In fact, while the boys had regular duties, such as acting as caddies for golfers, as guides and chauffeurs, the proprietor of the resort expected them to keep an eye out at all times for mishaps to his guests. This had trained the chums in a line where common sense, speedy action, and knowing how to do just the right thing at just the right time, would be useful in safeguarding property and human life. Frank did not have to tell his companions what to do. They knew their duty and how far they could be useful, as well as their leader. The motor boat was about a quarter of a mile out and was on fire. They could see the flames belching out at the stern. There seemed to be three or four persons aboard. As far as they could make it out at the distance they were, one of the passengers had sprung overboard and was floating around on a box or plank. The others were crowded together at the bow, trying to keep away from the flames. Randy had dashed down the beach to where there was a light rowboat overturned on the sand. Pep was making for a long pier running out quite a distance, pulling off his coat as he went. Frank had his eyes fixed upon a small electric launch lying near the pier. He did not know nor notice what course his chums had taken. He realized that if help came to the people in peril on the motor boat it must come speedily to be of any avail. It took Frank less than three minutes to reach the spot where a light cable held the launch against the pier. A rather fine-looking old man stood nearby, glancing through his gold-rimmed eyeglasses toward the beach, as if impatient of something.