Kids movie from 80s I think-title?
I watched a movie as a kid. I only remember very little... I remember there being a boy and a girl and a boy in some type of courtyard talking to someone. Then he comes in his apartment and takes off his boots. I remember the boy and girl traveling to some kind of land and riding a horse. I remember there being a castle and some kind of king who turns into a bird at the end of the movie... I know this isn't much help but does anyone know what this movie is called?? It is driving me crazy. Thanks so much!
ETA: I think there was also an invisible cloak involved...