"The captain knew more than we gave him credit for," muttered the hunter. "He heard the storm coming." The air, that had been so strangely quiet, now vibrated with a curious humming. It seemed to make the whole ship tremble. Then, just as the craft began to settle down, the upward pulling force of the gas being lessened under Washington's manipulations, there came a terrible roaring. The wind howled like a thousand demons seeking to tear the _Monarch_ to pieces. "It's a regular tornado!" cried Andy. Then the storm picked the downward-falling ship up as if it had been a feather and tossed the craft into the air. The adventurers were in a sad plight. There was nothing to be done. The forces of nature were ten times stronger than those of man. To start the engines and try to run the ship out of the grasp of the wind would only mean to strain the craft to a dangerous point. There was but one thing to do, to run before the tornado, as ships on the sea scud before the gale. In this way the airship might be saved, if it was not dashed down to earth. As soon as this plan manifested itself to be the best one, Washington stopped drawing gas from the bag. He wanted to keep the ship as high as he could. Jack still held his place in the conning tower, but he could do nothing to guide the craft, and it would have been folly to attempt it, so fearful was the force of the wind. "Which way are we headed?" asked Mark, making his way back to the tower where Jack was. "Almost due west," was the reply. "About two points to the south, too." "Then we are being driven away from the north pole," said Mark. "We're as helpless as kittens tied up in a sack," said Andy. "If only I could do something I'd feel better. But I've got to sit here and take what comes." The sick man stirred uneasily. Then he muttered in his delirium something about the tornado that was tossing him from side to side of the bunk. Strangely enough there was nothing to the storm but wind. There was no rain or snow, and the air was remarkably clear, excepting for the darkness of the clouds. Aside from the way in which the ship was blown along there was nothing to indicate that the breeze was rushing along at tempest speed. There were no trees bent to the earth, and no clouds of dust. The sky clouds kept pace with the airship. "I wonder where we are?" asked Jack, who with Mark had come back from the tower. "We'll have to guess at it," replied Andy. "It would be as much as a man's life is worth to go outside and take an observation." "Don't hab to do dat," broke in Washington. "See here!" He stooped over and pulled on an iron ring that was fastened in the floor of the dining-room cabin. A section of a board came up.