The Craftsman by Sharon Bolton

A man is dead- a bad man who captured children and buried them alive. Florence should be one happy policewoman as she is the one who broke the case all those years ago but now she has a nagging feeling that the killer could still be out there. We jump between young Florence as the only female working this horrific crime that will rip her small town apart and years later when she returns with her teenage son in tow to attend the funeral and put things to bed. There isn't time to breathe in this thriller as the tension builds from the first page and it isn't until the very end that you realize you have been holding your breath the whole time. Secret killers, spooky nights in graveyards and witch covens operating under the full moon make this book a powerful one-sitting knockout thriller.