Hidden Pictures by Jason Rekulak starts strong as a supernatural thriller before it almost becomes too twisty for its own good by the end. But despite the avalanche of new information at the end, it's still an inventive and entertaining read. 

Mallory Quinn takes a job as a nanny as part of her transition out of rehab. Unfortunately for her, the five-year-old boy she is hired to watch is haunted by a mysterious woman dismissed by his parents as an imaginary friend. The explanation would make sense if it weren't for his drawings, which quickly evolved from stick figures to heavily drawn, lifelike sketches focused on a woman being buried. 

Mallory suspects the drawings point to a long-unsolved murder, but she has a hard time keeping allies on her side. The boy's parents have explicitly forbidden any discussions about religion or supernatural occurrences. The nearest neighbor believes in the supernatural but possesses an extreme personality and an addiction problem of her own. And it's difficult to trust the young lawncare professional she befriends after lying to the young man for weeks. He thinks Mallory is a college student on an athletic scholarship.

Rekulak does an excellent job of laying ground in the wrong direction. Readers will be surprised three or four times over, but not in a way it's earned. They won't see what's coming because there is no way to see what is coming as new revelations flood the plot and sweep it away, leaving a very different kind of story than the one at the start.