10 Best Mystery & Suspense Books of 2026 You Won’t Put Down

Some of the best books you want to savor while others you can’t help but finish in one night, telling yourself “just one more chapter” until it’s 2 a.m. This year’s best mysteries and suspense novels include a haunted island, a revenge plot you’ll secretly cheer for, an identity swap gone deadly, and a couple who’ll do anything to keep their dream home. Liane Moriarty returns with her long-awaited Big Little Lies sequel, and Caroline Kepnes finally reveals how Joe Goldberg became Joe Goldberg.