Borka and his band and Mattis's band of robbers are rivals. Birk, his parents and their band live in the wild in Mattisforrest. They move in to Metis-stronghold, which belonged to his ... See full summary »
The Olsson family move into a castle that turns out to be haunted. The kids, with their dim parents oblivious to all the strange things that are happening, are caught in the middle of a big mystery in the centuries old castle.