The members of a university mystery club decide to visit an island which was the site of a grisly, unsolved multiple murder the year before. They're looking forward to investigating the crime, putting their passion for solving mysteries to practical use, but before long there is a fresh murder, and soon the club-members realise they are being picked off one-by-one. The remaining amateur sleuths will have to use all of their murder-mystery expertise to find the killer before they end up dead too.

This is a playful, loving and fiendishly plotted homage to the best of golden age crime. It will delight any mystery fan looking to put their little grey cells to use.

Yukito Ayatsuji (born 1960) is a Japanese writer of mystery and horror novels. He is one of the founders of the Honkaku Mystery Writers Club of Japan, dedicated to the writing of fair play mysteries inspired by the Golden Age greats. In 1992 he won the Mystery Writers of Japan Award for his novel The Clock Mansion Murders. The Decagon House Murders was Ayatsuji's debut novel and is the first of his works to be translated into English.