"No," answered Mr. Jackson. "You try."
But Tom had no better luck. There were two persons in the odd machine, which was slowly flying along, moving in a great circle, with the Swift house for its center.
"I wonder why they"re hanging around here?" asked Tom, suspiciously.
"Perhaps they want to talk to you," suggested Mr. Jackson. "They may be fellow inventors--perhaps one of them is that Philadelphia man who had the Whizzer."
"No," replied the lad. "He would have sent me word if he intended calling on me. Those are strangers, I think. There they are, coming back again."
The mysterious aeroplane was once more circling toward the watchers on the roof. There was a movement on the steps, near which Tom was standing, and his father came up.
"Is anything the matter?" he asked anxiously.
"Only a queer craft circling around up here," was the reply. "Come and see, dad."
Mr. Swift ascended to the roof. The aeroplane was higher now, and those in her could not so easily be made out. Tom felt a vague sense of fear, as though he was being watched by the evil eyes of his enemies. More than once he looked over to the shed where his craft was housed, as though some danger might threaten it. But the shed of the Humming-Bird showed no signs of invaders.
Suddenly the mysterious aeroplane increased its speed. It circled about more quickly, and shot upward, as though to show the watchers of what it was capable. Then, with a quick swoop it darted downward, straight for the building where Tom"s newest invention was housed.
"Look out! They"ll hit something!" cried the young inventor, as though those in the aeroplane could hear him.
Then, just as though they had heeded his warning, the pilots of the mysterious craft shot her upward, after she had hovered for an instant over the big shed.
"That was a queer move," said Tom. "It looked as if they lost control of her for a moment."
"And they dropped something!" cried Mr. Jackson. "Look! something fell from the aeroplane on the roof of the shed."
"Some tool, likely," spoke Tom. "I"ll get it in the morning, and see what sort of instruments they carry. I"d like to examine that machine, though."
The queer aeroplane was now shooting off in the darkness and Tom followed it with the gla.s.ses, wondering what its construction could be like. He was to have another sight of it sooner than he expected.
"Well, we may as well get back to bed," said Mr. Jackson. "I"m tired, and we"ve got lots to do to-morrow."
"Yes," agreed Tom. "It"s cooler now. Come on, dad."
Tom fell into a light doze. He thought afterward he could not have slept more than half an hour when he heard a commotion out in the yard.
For an instant he could not tell what it was, and then, as he grew wider awake he knew that it was the shouting of Eradicate Sampson, and the braying of Boomerang.
But what was Eradicate shouting?
"Fire! Fire! Fire!"
Tom leaped to his window.
"Wake up, Ma.s.sa Tom! Wake up! De areoplane shed am on fire, an" de Humming-Bird will burn up! Hurry! Hurry!"
Tom looked out. Flames were shooting up from the roof of the shed where his precious craft was kept.
Chapter Seventeen
Mr. Swift is Worse
Almost before the echoes of Eradicate"s direful warning cry had died away, Tom was on his way out of the house, pausing only long enough to slip on a pair of shoes and his trousers. There was but one thought in his mind. If he could get the Humming-Bird safely out he would not care if the shed did burn, even though it contained many valuable tools and appliances.
"We must save my new aeroplane!" thought Tom, desperately. "I"ve got to save her!"
As he raced through the hall he caught up a portable chemical fire-extinguisher. Tom saw his father"s door open, and Mr. Swift looked out.
"What is it?" he called anxiously.
"Fire!" answered the young inventor, almost before he thought of the doctor"s warning that Mr. Swift must not be excited. Tom wished he could recall the word, but it was too late. Besides Eradicate, down in the yard was shouting at the top of his voice:
"Fire! Fire! Fire!"
"Where, Tom?" gasped Mr. Swift, and his son thought the aged inventor grew suddenly paler.
"Aeroplane shed," answered the lad. "But don"t worry dad. It"s only a small blaze. We"ll get it out. You stay here. We"ll attend to it--Mr.
Jackson and Eradicate and I."
"No--I"m going to help!" exclaimed Mr. Swift, st.u.r.dily. "I"ll be with you, Tom. Go on!"
The lad rushed down to the yard, closely followed by the engineer, who had caught up another extinguisher. Eradicate was rushing about, not knowing what to do, but still keeping up his shouting.
"It"s on de roof! De roof am all blazin"!" he yelled.
"Quit your noise, and get to work!" cried Tom. "Get out a ladder, Rad, and raise it to the side of the shed. Then play this extinguisher on the blaze. Mr. Jackson, you help me run the Humming-Bird out. After she"s safe we"ll tackle the fire."
Tom cast a hurried look at the burning shed. The flames were shooting high up from the roof, now, and eating their way down. As he rushed toward the big doors, which he intended to open to enable him to run out his sky racer, he was wondering how the fire came to start so high up as the roof. He wondered if a meteor could have fallen and caused it.
As the doors, which were quickly unlocked by Tom, swung back, and as he and the engineer started to go in, they were met by choking fumes as if of some gas. They recoiled for the moment.
"What--what"s that?" gasped Tom, coughing and sneezing.
"Some chemical--I--I don"t know what kind," spluttered Mr. Jackson.
"Have you any carboys of acid in there Tom, that might have exploded by the heat?"
"No; not a thing. Let"s try again."
Once more they tried to go in, but were again driven back by the distressing fumes. The fire was eating down, now. There was a hole burned in the roof, and by the leaping tongues of flame Tom could see his aeroplane. It was almost in the path of the blaze.
"We must get her out!" he shouted. "I"m going in!"
But it was impossible, and the daring young inventor nearly succ.u.mbed to the choking odors. Mr. Jackson dragged him back.
"We can"t go in!" he cried. "There has been some mysterious work here!