某一天,已經退出圖書委員會的學姊突然來訪,她爺爺過世之後留下了一個打不開的保險箱,為此她想找人幫忙查出密碼……充滿耐人尋味的謎題和韻味,精彩的六篇故事(〈913〉、〈Lock on Locker〉、〈他星期五做了什麼?〉、〈沒有的書〉、〈說個故事來聽聽〉、〈吾友啊莫知曉〉),清爽微苦的「圖書室推理劇」正式開演!
Honobu Yonezawa (米澤穂信), Yonezawa Honobu, born 1978) loved making up stories even as a child and began writing fiction at the age of 14. By the time he got to university he was posting stories on his own website. After graduation he continued writing while working in a bookstore, and first got into print in 2001 when Hyoka (Ice Cream), a YA mystery novel he submitted for the Kadokawa School Novel Prize competition, earned an honorable mention. Sayonara yosei (Farewell, Sprite), a critically acclaimed story of the relationship between Japanese high-school boys and a girl from war-torn Yugoslavia, helped cement his reputation when it was published in 2004. Since then he has been a regular presence on lists of the year's best mysteries. Oreta ryukotsu (Broken Keel) won the Mystery Writers of Japan Award for Novels in 2011. Though known especially for his distinctive and fresh blending of the tale of youth with the whodunit, Yonezawa has also made forays into science fiction, as with 2006’s Botorunekku (Bottleneck) and 2007’s Inshitemiru (Try Indulging), a sinister "murder game" story. In 2013 he published the novel Rikashiburu (Recursible). He is a leading figure among Japan's younger generation of mystery writers.
The characters are developed slowly over the course of the short stories. I really ended up liking all of these and I really appreciated how the author didn’t go for a nice happy ending in all the cases but instead leaves the reader with some frustration over the ending.