This book was an excellent mystery/thriller. It kept me on the edge of my seat and I honestly couldn't wait to find out what was going to happen next.For you other thrill seekers out there, I must warn you that this book is on the more predictable side. There were still twists I couldn’t figure out and I loved the build! I was able to predict parts of the ending based on how it was set up, but honestly, it was more appreciation for the craft and execution than disappointment that I wasn't surprised. I think Hawkins gave us a genius novel and I can't wait to see more from this author. Synopsis: Lux followed her boyfriend Nico to Hawaii with the promise of being able to travel the world aboard his ship. It has been several months and Lux has done nothing but work in a swanky hotel. One day, she is caught breaking protocol and loses her job. At the same time, Brittany and Amma approach Nico about using his boat to travel to , an atoll with a dark history. Many say the island makes you crazy, will that fate befall this group too? When they arrive, the see that another boat is already there with Jake and Eliza. The quartet and duo make quick friends with one another and the remainder of the novel follows their friendship and time on the island closely. The novel is narrated primarily in the voice of Lux, with additional chapters set "before" narrated by others. This book is one of relationships and whodunits and oh so much fun! Between Lux and Nico, Brittany and Amma, Jake and Eliza, is anybody what or who they seem? I truly enjoyed piecing this novel together. I found that it was so much fun to try to follow the information presented to figure out what was going to happen to the group, and also how the Before stories fit in to the present day. One thing that I really appreciated was that all of the "Before" carried a very significant meaning in the end. These chapters were used to enhance the book and were executed wonderfully. I loved this thriller and would recommend it to other thriller lovers! Thank you to NetGalley and St. Martin's Press for the eARC of this book!