CHAPTER XV
FIRED UPON
Tom's excited call to the aeronaut, telling of the mishap to Mr. Damon, was answered immediately. Mr. Sharp jumped forward from the motor compartment, and, passing on his way the electric switch, he yanked it out, stopping the machinery, and the great propellers. Then he leaped out on the platform.
But something else happened. Just before the accident to the eccentric man, desiring to give a further test to the planes, the gas had been shut off, making the airship an aeroplane instead of a dirigible balloon. Consequently, as soon as the forward motion ceased the great ship began falling.
"We're sinking! We're sinking!" cried Tom, forgetting for a moment that he was not in his motor-boat.
"Slant your rudder up, and glide downward as slowly as you can!" directed Mr. Sharp. "I'll
