"A magical treasure hunt! Mirja does not want to stay at grandma and grandpa’s house in the countryside. There are only grownups around.But a family with a five-year-old boy, William, has moved into the pink house.
William’s boots are outside the door. Mirja tiptoes up the stairs and puts a potato in one of them. Later she finds a small round pale-gray rock by the door, with a sign on it made with purple marker. Quickly she grabs a charcoal and draws magical signs all over the road in front of William’s house."
The book is only available in swedish.