Still holding the cylinder in his hand, Phor Tak stepped to a shallow cabinet against the wall, and opening it revealed an elaborate equipment of switches, levers and push-buttons. "Now watch the miniature flier suspended from the track near the ceiling," he directed, at the same time closing a switch. Immediately the flier commenced to travel along the track at considerable speed. Now Phor Tak pressed a button upon the top of the cylinder, which immediately sped from his extended palm, turned quickly in the air and rushed straight for the speeding flier. Slowly the distance between the two closed; the cylinder, curving gradually into the line of flight of the flier, was now trailing directly behind it, its pointed nose but a few feet from the stern of the miniature ship. Then Phor Tak pul
