authors, book people, book reviewers, bookish, books, content-type: round-up: general, contentid: 4e079778-ac6d-4370-aab7-507d68bccdd0, displaytype: listicle, entertainment, hasproduct: true, literature, locale: us, media, publishing, shorttitle: these mysteries are like crossfit for your brain, writers, writing, contentid: aadc4758-ec60-426d-9014-cb0d551d2bbd, shorttitle: sizzling summer mysteries, contentid: f164e424-d6f9-4827-b76d-ae5a5046137b, shorttitle: these mystery novels will get your blood racing, contentid: b0e3c36b-c64c-4b67-a113-c90f0f2b4b25, shorttitle: the coziest holiday mysteries to read this season