95: Jo Callaghan on Body of Lies, Kat & Lock, and Ending a Beloved Series

In this episode of In My Good Books, I’m joined by bestselling author Jo Callaghan to talk about Body of Lies, the final book in the Kat and Lock series.In our conversation, Jo reflects on bringing the series to a close, and why the relationship between Kat and Lock has been at the heart of its success. We talk about how readers connected so deeply with these characters, and why their dynamic, balancing human instinct and emotion with artificial intelligence, has resonated with so many.We also explore the bigger ideas behind the books, including Jo’s hope that her writing can help demystify AI and encourage us to think more carefully about how we shape its role in ourlives.Along the way, Jo shares insight into her writing process, including the pressure of ending a beloved series, rewriting a major plot point at the last minute, and how her own experiences of grief shaped the emotional arc of the books.Find Jo here:https://www.instagram.com/jocallaghankat/Buy Body of Lies:https://uk.bookshop.org/p/books/body-of-lies-the-crime-thriller-of-2026-from-the-award-winning-and-sunday-times-bestselling-author-of-in-the-blink-of-an-eye-jo-callaghan/cbbcf2c82f6b5367?ean=9781398535565&next=tBooks recommended in this episode:When the Cranes Fly South:https://uk.bookshop.org/p/books/when-the-cranes-fly-south-lisa-ridzen/7733271?ean=9781804995808&next=tYou Are Here:https://uk.bookshop.org/p/books/you-are-here-david-nicholls/337b7d609c18664b?ean=9781444715460&next=tWhen Will There Be Good News:https://uk.bookshop.org/p/books/when-will-there-be-good-news-jackson-brodie-kate-atkinson/413666?ean=9780552772457&next=tMissing, Presumed:https://uk.bookshop.org/p/books/missing-presumed-susie-steiner/4494337?ean=9780008123321&next=t