“Princess, princess, youngest daughter, Open up and let me in! Or else your promise by the water Isn’t worth a rusty pin. Keep your promise, royal daughter, Open up and let me in!” RhymeFairy TalesBrothers GrimmPhilip PullmanIron HeinrichThe Frog King Book:Fairy Tales from the Brothers Grimm: A New English Version Source: Fairy Tales from the Brothers Grimm: A New English Version