Lina desperately wants to go on a holiday without her parents. They agree if her older brother accompanies her. The two go hiking in France in a region where the Cathars used to dwell. During the whole tour they have the feeling they are being followed. But by whom and why? Is the spell of the Cathars still influencing the two hikers? Why are their various hosts acting so weird? Why do they find several pieces of a game of scrabble? Only at the end of the book, the answer to all these questions will be given.