Now that the plunge has been taken into juvenile science fiction, these rocket operas have become steadily fancier in vocabulary and fabulous in story. Only slightly less spectacular than the scientists of giant brain and noble vision are the detective heroes who shuttle back and forth. In this incredible yarn, David Starr, youngest member of the Earth's Council of Science betakes himself to Mars to investigate Mars' farms as possible sources of poisoned food being shipped to Earth. He masquerades as a farm hand, pursues his investigations, and visits some incorporeal subterranean Martians on the side. An attempted murder, clever sleuthing, and an excited unveiling of the guilty parties provide ample thriller action. Standard Buck Rogers. And doubtless headed for popular favor.