Exactly a year after their last adventure, Charlie and Jake are dismayed to realise that their father, a bestselling children's author, has gone missing again. On a stormy August night, they set out once more on a quest to find him. This time, however, they are unable to use his works of fiction as a guide and must rely on courage and ingenuity alone. But the fantastical realm they must battle through is nonetheless of their father's creation and...