The Rabbit Back Literature Society by Pasi Ilmari Jaaskelainen

A lonely teacher becomes the much-anticipated 10th-and-final member in a lauded writer's group. But before her initiation can be properly carried out, the famous children's author who founded the group disappears mysteriously - leaving the newest member unmoored and without a mentor.

The woman learns about the group's history and relationships though a strange "game" the members play. It's a kidnap-and-interrogate system that lends the whole thing an illicit element and makes every revelation feel like a dark confession.

This is a strange, dark story (translated from Finnish) and I was never sure if I was reading a supernatural novel, a murder-mystery, or literary fiction. It could be a good book discussion title, if only to see and discuss what others thought of the characters and story.