Wilhelm Hauff: How the Caliph became a stork

The caliph is a happy man, living a comfortable life. One day, he is offered a magic powder, which gives him the power to change his form into whatever being he wants! Eagerly, he and his vizier change into storks – but then forget the magic word that makes them human again... Aimlessly, they wander through the world, until they chance upon another animal – and it seems that this animal might be a...