"It's a dreadful thing to walk over the moor..." Timo barely knows Lydia and Aunt Mimi, who are expecting him in Moorkaten for the holidays. He quickly feels at home in their cozy kitchen, even though a ghost is said to reside behind the stove... This ghost only reveals itself to certain people. Does Timo belong to that group like Lydia? But why is Lydia so hostile? Why does she put him to a dangerous test in the moor?.