All the way home the girls talked about the ghost of Lady Margaret. Anna was beginning to think that maybe there really were such things as ghosts and Nisser. When they reached the house, Hans was just getting out of his boat.
"Did you get any fish, Hans?" called Anna.
"No luck today, Anna."
"Are you sure you were trying to catch fish?" asked Greta, in her most teasing manner.
"What do you mean by that, Greta?"
"I thought maybe you had decided to go after books instead."
Anna looked at Hans. Could he have been playing a joke on them at Vosborg? Was it Hans who had taken the book and then put it back? But how could he have gotten into the library? And anyway, she and Greta had both seen him start down the river in the opposite direction.
Just then Greta's mother called from the door. "Anna, you have a letter from your mother."
"It's too bad you didn't take Chouse with you today, Greta," said Hans, when Anna had gone into the house.
"Why? What happened?"