Five on a Treasure Island is the very first book in Enid Blyton's most famous series, The Famous Five. The cousins Julian, Dick, and Anne spend their summer holidays with their fierce cousin Georgina (who insists on being called George) and her dog, Timmy, on the isolated Kirrin Island, which belongs to George’s family. They discover an old map that leads them on a thrilling quest to find treasure hidden on the island, battling thieves and solving cryptic clues along the way.