Jo Treggiari certainly excels in creating suspenseful thrillers. I really enjoyed her previous book, Blood Will Out, and this one is no different.

The Grey Sisters follows D and Spider. They’re both navigating the loss of siblings after a terrible and unexpected plane crash. D, Spider and their friend Min decide to go on a road trip to seek answers to the crash and gain some closure. While on this trip, they meet Ariel – a girl who lives on the mountainside.