The Best New Thriller Books of Summer 2026

Caution: The best new thriller books are so addicting you’ll find yourself glued to the page. Don’t say I didn’t warn you. A new season brings new books, and the list of new thrillers in 2026 is particularly long. Of course, my summer reading list is full of all the best new thriller books I could find. If you are a fan of page-turning mysteries, you’ll love this list of all the best new thrillers of summer 2026. In my search for the best thrillers books of the year, I’ve included all the best thriller books out there. Whether you are looking for the best new psychological thriller books or prefer a good domestic mystery, there’s something for everyone! New Psychological Thriller Books It Could Have Been Her Lisa Jewell While walking her dogs in the country, Jane Trevally stumbles across a small white dog. Thinking it belongs to a teenaged girl who had recently been staying nearby, she drives hours away to London to return it. Except the journey leads her to a house she has a dark history with and a man falsely claiming the dog was stolen. Jane kept help searching for answers to the lost dog, the missing teen girl, and the secrets she’d rather stay buried in this dark psychological...