from the electric battery. Instantly the giant's arms dropped to his side, his hands relaxed and the handles dropped clattering to the floor.
With a look of fear, and a howl of anguish, the big guard fled, but to the surprise and gratification of Tom and his friends the others seemed only amused, and they nodded in a friendly fashion to the captives. They all pressed forward to try the battery.
One and all endeavored to loose their hands after Tom, by a movement of his forefinger, had turned the switch of the battery, and one and all of the giant guards were unable to stir, as the electricity gripped their muscles. They were evidently awed.
"This is working better than the fireworks did," murmured Tom. "Now if I can only keep up the good work, and get ahead of Delby I'll be all right. Now for the other test, Ned."
Ned brought from a box what looked to be a small iron bar, with a large handle on the top. The bottom was ground very smooth.
"This is very small and light," explained Tom, partly by signs, and partly by words. "I can easily lift it by one finger, and to a giant it is but a feather's weight."
He let the giants handle it, and of course they could fell scarcely any weight at all, for it tipped
