Doug and Dex, zombie detectives

Doug and Dex are the youngest detectives in the world. When their sister, Tilly, has her brain captured by a gang of ravenous brain snatchers, they set out to find it before she becomes a zombie forever. Told with humour, imagination and delightful illustrations, this is a story about the strength of family, the rewards of hard work and the importance of keeping your brains in your head!