Maurits has taken a bath. But suddenly he feels as if he is being watched. Not to worry: it turns out to be his friends the guinea pigs from the earthly paradise.
They have heard that some paintings are going to be put in the cellar. And they don’t want that to happen! Maurits asks his girl with a pearl earring for advice. But she just smiles.
Lost in thought, on the way back to his hole, he passes an old man. Is the man winking at him? And then something happens that sends Maurits tumbling down the stairs and he ends up in a sack of flour in a windmill in Leiden…
