Grinny

A parent might reach for this book when their thoughtful, observant child is ready for a suspenseful story that isn't gory. Perfect for kids who enjoy puzzles and feeling like they are in on a secret adults can't see, Grinny validates a child's intuition. The story follows siblings Tim and Beth, whose lives are disrupted by the arrival of a 'Great Aunt Emma.' The adults see a sweet old lady, but the children notice unsettling details: her speech is too perfect, her knowledge is encyclopedic, and her smile is a terrifying, fixed grin. This classic British sci-fi thriller is a masterclass in slow-building tension, celebrating curiosity, sibling teamwork, and the courage to trust your own instincts, even when grown-ups don't believe you.