"But suppose we can outwit the king in some way," I returned, "and escape in the car, leaving him and his subjects behind?"

"You and our other friends may go, if we can possibly manage it," said Quinn, "but I have made up my mind to stay here."

I stopped short and stared at him.

"Surely you can't mean that!" I exclaimed.

"I do mean it," he said firmly. "For the good of Terra these creatures of Njambai must be watched. We have only a surface knowledge of them and their resources. What if they should bring forward other means of spanning space besides our car?

"Can't you see," the professor went on passionately, "that my misguided enthusiasm painted the wonders of Earth in such glowing colors that King Gaddbai will strain every effort to gratify his cupidity and lust for conquest? I must remain here to combat him and hold him in check."

"Sir," said I in trepidation, "I think you take fright too easily. Once we leave Njambai in the car, it will be impossible for any of the Baigadds to follow us. You overestimate their possible resources."

"Whatever is possible cannot be overestimated. It may chance that I alone shall stand between this resolute monarch and the welfare and happiness of Terra. To desert my post would be cowardice. Do not seek to argue with me, for I made up my mind to this last night."

The reckless indifference with which I had fared forth from the city gave place to deep sorrow. Professor Quinn observed this and continued:

"Do not exercise yourself over my fate, Mr. Munn. I removed four rabid enemies of the people from our planet and I give back to it four eminent reformers. My end has been accomplished beyond my fondest dreams if this is brought to pass.