This is a short story book. Pid the Pilot slowed the ship almost to a standstill, and peered anxiously at the green planet below. Even without instruments, there was no mistaking it. Third from its sun, it was the only planet in this system capable of sustaining life. Peacefully it swam beneath its gauze of clouds. It looked very innocent. And yet, twenty previous Grom expeditions had set out to prepare this planet for invasion—and vanished utterly, without a word. Pid hesitated only a moment, before starting irrevocably down. There was no point in hovering and worrying. He and his two crewmen were as ready now as they would ever be. Their compact Displacers were stored in body pouches, inactive but ready.