Fayson has always wanted to be a detective. When her cousins recruit her to their top-secret gang on the island one summer, her dreams seem to be coming true. But the Greatest Gang of All Time don't live up to their name, and keep getting distracted from missions by things like food, falling asleep and a fair bit of squabbling! Guided by her favourite mystery novels, Fayson takes charge and tries to track down clues about the strange shadow that has been appearing in the island's lighthouse. With tensions stirring within the gang, can she use all her smarts to solve the case?

"Exploring themes of family and friendship, this is great for fans of mystery adventure stories" - The Week Junior, Book of the Week

"Like Enid Blyton with a social conscience, this marks the start of an addictive new series for 8+" - Guardian

"A charming plot... ideal for confident younger readers" - Booktrust

"A gentle introduction to mysteries for young readers" - Five Books, Best Kids Books of 2023

"An immensely satisfying story, perfect summer reading" - Books For Keeps

"A vibrant, colourful, thoughtful and exciting mystery story" - ReadingZone