This niggling query has been driving me slightly mad the last couple of days. As a child I read a bunch of books by the same author. I read them translated into swedish (as I lived in sweden) so I don't know the english titles and I can't remember the writers name.
One of them was about a boy who lives in a city that is ruled by a family of brothers and sisters. Strange things start to happen to his family as one after the other of the siblings take an interest. The siblings each rule a seperate area of the city. In the end it turns out that this boy is one of them.
Another book was about a star who was turned into a dog as a punishment.
If this rings a bell for anyone, do tell me.
thanks