A chunk of mass blew off the planet Zylmarx and was hurdled towards Earth. It streaked over New York and landed in Tibet, far from civilization. For almost four years, the crater remained untouched. There were faint rumblings in the Earth, recorded on seismographs all over the world, but they were not considered unusual. Unknown to humanity, something was slowly developing within the meteor towards its awful birth... And then, early in 1939, the ground split open and out of the crater emerged a horrible sight... The Claw!