Tru Beckett built a secret book room in her now bookless library. Now she's working hard to maintain the little library downstairs while keeping her 'real job' upstairs in the technology centre. The last thing she needs is a mysterious vandal who brutalises the books. A patron of the secret room tells Tru that there have been rumours of a poltergeist. Tru is certain it's hogwash, but she's at a loss to think of who might be responsible. And when a dead body shows up right behind the library, Tru is certain that it's not a ghost but a cold-blooded killer that she and her trusty tabby will need to uncover.