Brock and the magic keyMr and Miss Karlson are simple people folk ; Marc was riginally from London, while Helen lived in a orphanage as a child. The pair have two children, Anas and Nicolas, and decide to take them to Brittany for their holidays. Anas and Nicolas discover a key in the shape of the wings of a fairy. This key is magic ; at night, it opens and ancient door that leads to a fantastical wold of trolls, fairies, imps and other creatures. However, the door traps