|Avon paperback, fifth printing, April 1970. Cover by Don Crowley.|
The glowing ovoid plummeted earthward, the sky screaming like a metallic banshee as the air boiled away from its sides.
A supersonic boom broke over the forest. The curious thing glided down; earth fountained away from it like water, and the forest burst into flame!
Then a thin black line etched a circle on the side of the metal egg; the circle thickened into a door, or airlock; the air was rent by a searing, screaming hiss and suddenly - the strange being soon to be known to all mankind as