THE RADIUM POOL is the story of the desperate search by two gallant men for a lost woman; of their meeting with the weird Jovians in the hidden workshop under the Valley of Death; of the uncanny mysteries of the Pool, and the immortality found therein. Throughout this tale of dark adventure the unseen hand of fate is deftly guiding the destinies of each man toward good and evil. Included in this volume is a scientific detective story, "The Phantom of Terror," and "The Red Dimension," once reprinted in Startling Stories' Hall of Fame, and considered by many readers to be the author's best science fiction short story.