Do you know what a troll dick is? Anna and Tollak didn't. Then they met an old crone who knew all sorts of long-forgotten stories. Suddenly the children realized why Tollak's great-grandfather frequently had been called crazy. They got to learn about the people that used to live in this city, long before it ever became a city. And - they got to find out what really happened the day that the boy with the troll dick discovered what he was ...