This book struck the perfect balance of creepy, intrigue, and twists that I love in a thriller. Set in a world where sci-fi seamlessly blends with thriller, Coile delivered chills while keeping me constantly guessing about William’s next move. I also was constantly wondering what secrets Henry and Lily might be hiding. I was especially hooked by the concept of a robot developing disturbingly human traits, which gave off serious Smart House vibes… if Smart House had a body count and a dark mystery at its core. I was completely captivated right up to the final page. And that ending? Totally twisty and unexpected.