Korgan Kantum Mohar was deeply interested. The questions that he asked revealed the trained, scientific mind; and the last one that of the soldier, the man of action.

"Can you build one of these ships for me?" he demanded.

I told him that I could but that it might require long experimentation to adapt their motors and materials to the requirements of a successful airplane.

"You have two or three hundred years," he said with a smile, "and the resources of a race of scientists. Materials that we do not now possess we can produce; nothing is impossible to science."

XVI

ATTACK IN THE NIGHT

I was given a factory close to the Gate of the Physicists, at the end of Kantum Lat. I chose this location because there was a level plain beyond this gate that would make an excellent flying field, and also so that I would have my finished plane finally assembled where it could easily be wheeled out of the city without interfering with traffic to any great extent.

On the advice of the Sanjong, which took a deep interest in both this new venture into aëronautics and the, to them, new science of astronomy, I divided my time between the two.

My time was fully occupied, and I worked far more than the usual four hours a day. But I enjoyed the work, especially the building of a plane; and engrossing were the day dreams in which I indulged of exploring Venus in a ship of my own.

The necessity for relaxation and entertainment is stressed by the people of Havatoo, and Ero Shan was constantly dragging me away from my drawing board or my conferences with the corps of assistants that had been placed at my disposal by Mohar to take me to this thing or that.