Okay, I'll be the dissenting voice slightly. 'Still See You Everywhere' is the latest, yes. But is it necessary to read the Frankie Elkin books in strict order? Not really. Each mystery is standalone. Frankie's backstory is explained enough in each book to understand her motivations. I read the second one first and wasn't lost. That said, reading in order gives you a deeper appreciation for her growth. The new book is a great entry point, though, because the premise is so hooky: a serial killer on death row hires Frankie. That alone sells it. The execution is top-notch, with Gardner ratcheting up the tension as the tropical storm cuts the island off. It's a fun, escapist thriller with enough depth to feel substantive.