"

What's up?" asked George of Hart, who was tugging frantically at the controls.

"The liner has gone the way of the first two," he replied: "and the yarn about the pillar of fire was not so far wrong after all."

"You saw the same thing?" asked George incredulously.

"Yes, and so did Jack. There came some beams of light from the sky; then the pillar of fire and the roaring you heard, after which the vessels were gone and our electrical system paralyzed."

"Holy smoke!" ejaculated George. "What to do now?"

As he spoke, the Pioneer came out of the spin, and we were able to resume our positions in the seats. None of us was strapped in, and we had been clinging to whatever was handiest to keep from being tossed about in the cabin. Hart wiped his forehead and growled out an oath. The instrument board was still illuminated, for its tiny lamps were supplied with current from the storage battery. But the main lights of the cabin and the ignition system refused to function. We were gliding now, but losing altitude rapidly, having already dropped to the lower limits of level five.

"Can't you use the rocket tubes?" I inquired hesitatingly.

"They are fired in the same manner as the motor," replied Hart; "but we might try an emergency connection from the storage battery, which is ordinarily used only in starting and for the panel lights."