The story started out as a cyber bullying case but as the investigation continued, many small nuances lead police in a different direction. Police were questioning the high school kids in the group to find out the whys and what-fors of the bullying of the young girl who killed herself in the bathtub of her mother's home. The investigation took some time as it was difficult to talk to the teens. Parent had to be there during questioning of the minors and it can be difficult to get any answers from teen with a parent there. So it took a while, but eventually the police and Amanda, in particular, know now who instigated the cyber bullying to get Wadelyn to commit suicide. However, before they could talk to Helena about it, she disappeared. The search for Helena took some time but the police didn't find her, she was returned to her parent's house during the night, dead, with some strange things having been done to her body. Helena was now victim number 1 of a new serial killer to be named in another book. Wow! what an ending. I cannot wait for the next book. This story is well written and very engaging.