The Pinhoe Egg

So... “this is a story...” huh? X-]
This is a story of some kids with magical powers, and family feuds and how Christianity caused a lot of misery to ancient magical beings and how people continue doing things they have “always” done, without knowing why, nor caring about it, and are ready to go very, very far - to maim, kill, hurt, damage, cause pain and suffering, just to keep doing the things they don't even know why they are doing... And it ends well, so all is good.

A really good Chrestomanci story. Single world rather than multi world but very well developed characters and good twists