Fortunately Rob Blake had wonderful presence of mind in a sudden emergency. Some boys would have been so badly shocked by what was happening near at hand, that for the time being, they must have been unable to make any move toward rendering first aid to the afflicted.

No sooner did the leader of the Eagle Patrol see that terrible outburst of fire than he started his little motor on at full speed, heading straight toward the imperiled launch.

“Quick! get hold of that fire extinguisher we carry!” he called out to his companion, who was staring, with open mouth and awe-filled eyes, at the scene of commotion close by.

“But, Rob, will the fluid put out a gasolene fire?” exclaimed Andy, though at the same time hastening to throw back the lid of a locker and snatch out the brass tube which had been lying there for just such a time of sudden need.

“Yes, that’s one of its best uses,” Rob told him hastily. “It seems to form a coating over everything it touches that the fire can’t break through. It kills fire. That’s where it gets its name. Be ready now to make use of it when we come up as close as I dare go.”

“Both of the men are overboard, Rob!” announced Andy excitedly, “and hanging on to the side of the boat. Wow! but isn’t she blazing, though? I can begin to feel the fierce heat even here!”

“Ready to get busy now!” cried the skipper, as he manipulated his engine in such a way as to reverse the propeller, and bring the Tramp to a stop close to the blazing launch.

Andy was no coward, and could keep a pretty level head when it came down to doing things; though often he had to be told what to attempt by someone more masterful than himself. As soon as Rob shouted to him to start operations, he worked the fire extinguisher with might and main, and was considerably astonished to discover that just as Rob had said, wherever the magical fluid struck, it seemed to dishearten the conflagration, for the flames immediately died out.

“Whoop! it’s doing the whole business, that’s right, Rob!” cried the pleased amateur fire-fighter, as he continued to make judicious use of his apparatus. “Why, I tell you nothing can hold out, Rob, against this dandy contraption. Look at it do the work, will you? Oh! it’s sure worth its weight in gold when you need something to save your boat with.”

Indeed, to judge from the magical way in which the threatening fire was extinguished aboard the old launch, Rob Blake had certainly made no mistake when he purchased that little fire-fighting contrivance, even though it did cost him close on ten dollars.