This fire has been set by some enemy! We can't go in!"
"But I am going!" declared Tom. "We'll try the back door."
They rushed to that, but again were driven out by the gases and vapors, which were mingled with the smoke. Disheartened, yet with a wild desire to do something to save his precious craft, Tom Swift drew back for a moment.
As he did so he heard a hiss, as Eradicate turned the chemical stream on the blaze. Tom looked up. The faithful colored man was on a ladder near the burning roof, acting well his part as a fireman.
"That's the stuff!" cried Tom. "Come on, Mr. Jackson. Maybe if we use the chemical extinguishers we can drive out those fumes!"
The engineer understood. He took up the extinguisher he had brought, and Tom got a second one from a nearby shed. Then Mr. Swift came out bearing another.
"You shouldn't have come, dad! We can attend to it!" cried Tom, fearing for the effect of the excitement on his invalid parent.
"Oh, I couldn't stay there and see the shed burn. Are you getting it under control? Why don't you run out the Humming-Bird?"
Tom did not mention the choking fumes. He
