"Fool!" cried the professor, laying hold of him and struggling to keep him back. "Would you become a satellite of this twenty-by-thirty planet? We are beyond the atmosphere of the earth—look! See the four packets of loot and the thief's revolver."

He pointed through the door and the bulging handkerchiefs and my six-shooter were abreast of us, hanging in space, turning slowly, weirdly—a sight to upset the strongest mind.

Gilhooly jumped forward, gave vent to a maniacal laugh, then crumpled down on the floor.

"Bid up for the G.H.&D.," he mumbled, "bid to the limit! I must have that road—I will have it."

"Brace up, Meigs!" said the professor sharply, pulling the key from the outer side of the lock, slamming the door, fastening it, and putting the key in his pocket. "Take care of Gilhooly, man! His mind falters! Heavens, are you all mad? Are your keen minds, unshaken in the contemplation of vast deals for the enslavement of the poor, so quick to break? I had thought better of you than this!"

Meigs, white as the spotless linen that covered his breast, advanced upon the professor. He tried to speak, but without success. At last, with a supreme effort, the words came:

"Madman, what have you done?"

"That is better," returned the professor, smiling as he looked at Meigs and noted how Markham and Popham ranged themselves at his side; "much better. You were engaged in plots back there on the earth, and the success of those plots would have proved a great calamity. I have saved the world from the calamity!"

"Your—your castle has risen from the earth?" asked Meigs.

"It has fallen off the earth. As you and I and the others happened to be inside, we fell with it!"