The Dark Lord of Derkholm. An unconventional wizard and his magical family become involved in a plan to stop the devastating tours of their world arranged by tyrannical Mr. Chesney. Jones, Diana Wynne. Howl's Moving Castle. In the land of Ingary, such things as spells, invisible cloaks, and seven league boots are everyday things.
Nothing is quite what it seems to be.
Jones, Diana Wynne. The Lives of Christopher Chant. Christopher discovers that his dreams are so realistic that he can actually visit other worlds and bring things back from them for his beloved, yet mysterious uncle. Jones, Diana Wynne. The Magicians of Caprona.