Hannah Fox and her friend Jo are on the holiday island of Mallorca. The sun is shining and the water is perfect for swimming. But in this beautiful place, something terrible is happening. Hannah learns that their mysterious rich neighbour is hiding something – a secret project that could lead to the deaths of many people. He must be stopped, and Hannah wants to be the one to do it.
Hannah Fox and her friend Jo are on the holiday island of Mallorca. The sun is shining and the water is perfect for swimming. But in this beautiful place, something terrible is happening. Hannah learns that their mysterious rich neighbour is hiding something – a secret project that could lead to the deaths of many people. He must be stopped, and Hannah wants to be the one to do it.