is nothing to what I'll do when I use the
full power. Then I'll--"

He was interrupted by a sharp report, and a vivid flash of fire on a
switch board near the steering wheel. The motor gave a sort of groan,
and stopped, the car rolling on a little way, and then becoming
stationary.

"Bless my collar button!" ejaculated Mr. Damon.

"What's the matter?" inquired Mr. Sharp.

"Some sort of a blow-out," answered Tom ruefully, as he shoved the
starting handle over, trying to move the car. But it would not budge.
The new auto had "gone dead" on her first tryout. The young inventor
was grievously disappointed.

CHAPTER XIII

TOWED BY A MULE

"Bless my gizzard! Is it anything serious?" asked Mr. Damon. "Will it
blow up, or anything like that?"

"No," replied the lad, as he leaped out of the car, and began to make
an examination. Mr. Sharp assisted him.

"The motor seems to be all right," remarked the balloonist, as he
inspected it.

"Yes," agreed our hero, "and the batteries have plenty of power left in
them yet. The gauge shows that. I can't understand what the trouble can
be, unless--" He paused in his remark and uttered an exclamation. "I've
found it!" he cried.

"What?" demanded the aeronaut.

"Some of the fuses blew out. I turned on too much current, and the
fuses wouldn't carry it. I put them in to save the motor from being
burned out, but I didn't use heavy enough ones. I see where my mistake
was."

"But what does it mean?" inquired Mr. Damon.

"It means that we've got to walk back home," was Tom's sorrowful
answer. "The car is stalled, for I haven't any extra fuses with me."

"Can't you connect up the battery by using some extra wire?" asked Mr.
Sharp. "I have some," and he drew a coil of it from his pocket.

"I wouldn't dare to. It might be so heavy that it would carry more
current than the motor could stand. I don't want to burn that out. No,
I guess we'll have to walk home, or rather I will. You two can stay
here until I come back with heavier fuses. I'm sorry."

Tom had hardly ceased speaking, when, from around the turn in the road
proceeded a voice, and, at the sound of it all three started, for the
voice was saying:

"Now it ain't no use fer yo' to act dat-a-way, Boomerang. Yo' all ain't
got no call t' git contrary now, jest when I wants t' git home t' mah
dinner. I should t'ink you'd want t' git t' de stable, too. But ef yo'
all ain't mighty keerful I'll cut down yo' rations, da