The June nineteen thirty-one issue of Astounding Stories opens with Sewell Peaslee Wright's tale of time travel, in which a scientist utilizes a revolutionary machine to project himself into the future, only to encounter a commander of the Special Patrol Service named John Hanson. The narrative explores the moral implications of tampering with the timeline and the hubris of scientific ambition, ending in tragedy as the time-traveler meets his fate. Another prominent work in the collection is Arthur J. Burks's novelette Manape the Mighty, detailing a shipwreck on the coast of Africa where a castaway encounters an eccentric professor performing horrific brain-transplantation experiments on humans and great apes.
The psychological terror of losing one's identity and physical form underpins this jungle adventure, highlighting the dark side of unchecked scientific experimentation. The issue also includes contributions by Charles Willard Diffin, R. F. Starzl, and Ray Cummings, further expanding the thematic breadth of early American pulp science fiction. These stories collectively address themes of exploration, futuristic technology, and the ethical boundaries of human ambition, capturing the distinct literary style of the era's periodical fiction.
