A Murder Mystery Adventure!
When the players arrive at the gates of Candlekeep in the dead of winter, they don't expect to find the doors barred and no Watcher to greet them. These are no ordinary times in the Great Library however. The Keeper of Tomes was murdered last night, and his body found mutilated at dawn. As the only people not present in Candlekeep at the time of the murder, the council of Great Readers vote to put the players in charge of the investigation.
As they try to solve this complex crime they will uncover many more secrets of the Great Readers, reckon with the Beast of Candlekeep and maybe even discover the fabled Vault of Secrets itself... an archive so powerful that if its tomes fell into the wrong hands civilisation as we know it would be plunged into depravity.
- from the publisher's blurb