about sequels—technically, no, there aren't any direct sequels. Agatha Christie wrote it as a standalone, and honestly, that's part of its charm. But if you're craving something similar, 'The Murder of Roger Ackroyd' has that same twisty, unreliable narrator vibe. Or try 'We Have Always Lived in the Castle' by Shirley Jackson for another dose of unsettling atmosphere and complex characters. Sometimes, the best follow-ups aren't sequels but spiritual siblings.