Something on remote Neptune is at work against Earth, and a small party of men sets out across two billion miles of space to find it. Captured and held in cell-compartments on the moon Triton, amid the roar of vast alien mechanisms, they learn what the Neptunians intend. Hamilton’s 1930 serial is space opera on the grand scale.
Classic interplanetary adventure from the early pulp era by one of the founders of space opera. Download the free EPUB.