The last thing Jack expected when he bungee-jumped at the fair was to plummet into the weird and wonderfully Labyrinthine Rooms. Along with a girl called Cally, he must navigate his way through them-outwitting a grumpy polar bear, hundreds of tiny yet ferocious lions and solving some mind-blowing riddles-and at the same time come to terms with the death of his mother. An unmissable, high energy debut that young readers will adore escaping into.