Weird Fantasy #9

Jean was agog with excitement as she was to be the first woman to set foot on the planet Mars. As the ship's crew set down and disembarked, the men went out to explore, Jean began to feel as if she were being watched. Soon one of the doctors was carried off by slithery alien creatures, but returned just as the ship was set for take-off. Jean and Ken were married, but then she discovered a secret known only to her new husband.