A group of Japanese university students have created a mystery club, where they meet to discuss mystery books and authors. They call each other by famous detective's names such as Agatha, Poe and Ellery. The club decides to go on an outing over their school break. One of the students has an uncle who has just bought an island where six months ago, four grisly murders occurred over a week, then the house of the perpetrator burned down with the bodies of all the victims. There is still a guest house on the property and it is built in the shape of a decagon. There are seven club members who want to go so there is plenty of room for everyone as the house has ten rooms like its name.
The week comes and the students are taken to the island. There will be no way off for a week until the boat comes back and no telephone service or electricity. The group will be totally on their own. Their first night is fine but they awake to find tiles that have been labeled The First Victim, The Second Victim, etc. and a note saying that each of them will be murdered. Surely someone is playing a joke. But slowly the prediction starts to come true and one by one the group is murdered.
The group attempts to solve the murders as they happen as they attempted to solve the prior murders. Back on land, there are also people interested in the first murders and when they realize the students are on the location, fear for their safety. But when they get to the island to persuade them to leave, all the students are dead. Who was the murderer?
This book is famous in Japan for launching the new traditional or classic detective novel in the genre there. Yukito Ayatsuji writes in the genres of horror and mystery and was one of the founders of the Japanese Mystery Writers Club. I've seen this book in various lists of the best of various genres over the years and so I jumped at the chance to read it. The mystery was fascinating as it used the example of Christie's And Then There Were None to slowly take away character after character. The prior murders on the island added even more mystery and chances to play the detective. This book is recommended for mystery fans.





























