Space pulp, with most of the standard elements - the down-on-his-luck space pilot, the scantily clad space-babe with a mission. Throw in evil aliens in pursuit and how can you go wrong? Nothing deep here, but a decent time killer if you're stuck in a waiting room.
One of the best crime novels I have found on this site. Not really a "mystery", as the crimes are clearly portrayed. The four-way game between the intelligent criminal, peripheral criminals, pursuers, and victims is brilliantly written. I agree with the "6 star" comment, this book really stands out.
Another excellent Fletcher mystery. If you are a fan of British crime / mystery and have never read Fletcher, you owe it to yourself to give him a try.
The heiress of a mysterious and missing father is relentlessly pursued by an international criminal organization. She is protected by her father's faithful and capable butler, and a local newspaper reporter (the romantic interest). The book reads like old-time serialized cliffhanger pulp spliced together to make a novel - but in a good way. I found the book entertaining and good pulpy fun - and yes, someone does actually get tied to the railroad tracks.