Finnegan Quick is haunted by nightmares. They're so bad, he's terrified of going to sleep. Because Finn's dreams change the waking world too. He's already lost his mum, his dad, his dog, even his shadow. And now they're coming for his gran, the only family he's got left. Then a mysterious girl starts appearing in his dreams, helping Finn fight back against the creatures in his nightly adventures. On the first day of the new term, she turns up at school, right there in real life, in the lunch queue! Cass tells Finn that she has come to solve the mystery of Finn's missing parents. Together with Finn's geeky best friend Squid, they travel through the nightmare world, battling goblins, ghosts and zombies. Finn, Cass and Squid are a sparky, wise-cracking trio, but even together, can they prove to be a match for the creatures of the night? If Finnegan Quick is to save the people he cares about most, he has to remember the lesson his gran has been teaching him all his life. He must learn to face his fears - or be destroyed by them!