The Mastery of Mind Over MatterThey descended rapidly, directly over a large and imposing city in the middle of a vast, level, beautifully-planted plain. While they were watching it, the city vanished and the plain was transformed into a heavily-timbered mountain summit, the valleys falling away upon all sides as far as the eye could reach.
"Well, I'll say that's SOME mirage!" exclaimed Seaton, rubbing his eyes in astonishment. "I've seen mirages before, but never anything like that. Wonder what this air's made of? But we'll land, anyway, if we finally have to swim!"
The ship landed gently upon the summit, the occupants half expecting to see the ground disappear before their eyes. Nothing happened, however, and they disembarked, finding walking somewhat difficult because of the great mas
