The final book in Captain W.E. Johns' space adventure series takes Tiger even further into the cosmos! When the crew of the Tavona discover a body floating in space - and wearing a kilt, no less! - they know at once the man must be from Earth. But how? As far as they know, only they have access to the technology for travel. Once they return home they discover the man's identity, and that he isn't the only man who has gone missing. Were they victims of alien abduction? By who, and for what purpose? It's Tiger to the rescue once again!