Fairies liked a bit of fun, but they played rough and didn’t care if their toys got broken. They’d been gods once, who’d shrunk and faded with the coming of Christ, and now they lurked in hollow hills and at the borders and edges of things, places even God seemed to forget about or else why wouldn’t He just get rid of them? They had their own world, too, the Otherworld, and if you put a foot wrong, on a thin place, you could fall right through into it and be trapped for a hundred years…