Twelve-year-old Izzy Cervantes and her best friend Mackenzie have to spend their summer at Camp Foxtail... andthey're in different cabins! Izzy finds herself in the Willows cabin where her cabinmates have been friends forever - Izzy struggles to fit in. Then Izzy hears a prank war between Willow Lodge and boys' cabin Wolverine Lodge. It's her chance so she invents an older brother Tomas, a highly respected prankster. The effect is instantaneous; she goes from anonymous new girl to secret weapon. Izzy confides in her best friend and they spend the few comfortable hours they have together hatching perfect pranks for "Tomas" to suggest. The first prank goes off with a bang but soon Izzy becomes so focused on pranking that she starts neglecting Mackenzie-and even forgets her birthday. Mackenzie finally snaps and lets it slip to the entire camp that there is no Tomas!

Tanaqui and her family have always known they were somehow different from the other villagers. But when the great floods come and they are driven from their home, they begin to realise the part they must play in the destiny of the land. As Tanaqui weaves the story of their frightening journey to the sea and the terrifying, powerful evil of the mage Kankredin, she realises the desperate need to understand the meaning of it all. Can she fit the pieces of the puzzle together in time to halt Kankredin's destruction?