Human genetic engineering experiments to facilitate colonization of Mars take some tragically wrong turns. Include the obligatory 1950's space romance and you have - pulp - but good pulp. Very entertaining.
This is an excellent mystery novel written by a Scotland Yard man with a distinguished career. Read the Wikipedia article for Frank Froest to get an appreciatian of his credentials.
Another excellent mystery novel by Fergus Hume, although not quite as good as his novel -Red Money-. Both books employ a similar plot mechanism - a male protagonist gridlocked and unable to take action due to his sense of duty to a woman.
Hume was a prolific author and I look forward to reading more of his books.
Murder occurs at an English country estate following the arrival of a caravan of Gypsies temporarily camping on the grounds.
This is the best mystery I have read for a while - a complex and interesting plot and strong characters. Highly recommended.