The G-Bomb

In the tradition of the old Ace Doubles (flip one book over to read the second), here's the twenty-first Wildside Double:

THE G-BOMB: A SCIENCE FICTION NOVEL, by John Russell Fearn. Despite being the cleverest man on Earth, Jonas Glebe becomes the unwitting tool of a baleful intelligence. He hopes that his new invention, the G-Bomb, will bring riches to himself and his daughter Margaret--but instead, it brings death, and a deadly threat to mankind. Val Turner knows the danger, but he is imprisoned, having been framed for Margaret's murder. When Val's eventually released, he's too late to prevent the cataclysm that has engulfed the world. But fate intervenes:
he saves a strange little man from drowning, and thereby changes the destiny of the world....

FROM AFAR: A SCIENCE FICTION MYSTERY, by John Russell Fearn. Richard Shaw thinks he's been blessed when he and his new bride Beryl survive a car smash. Both make rapid recoveries from their injuries, both have apparently fully recovered. But Beryl is strangely changed. As the doctor tells Richard: "As far as we can tell medically, she is normal again, except for one thing--the way she looks at you. I don't think I have ever seen such a strange light in the eyes of a woman before!" Despite Beryl's odd, even sinister, new mental outlook, Richard buys an isolated house in the country--at his wife's insistence--and tries to pursue a normal married life. And then the murders begin....