The Nowhere Key

Everybody knows there are four realms, held apart by the strength and dedication of an Emperor that nobody has ever seen. Two lower realms, their own mid-realm, and the realm of the Gods. Just as everybody knows the Emperor's Hearts are the only beings capable of tearing through the boundaries and controlling the things on the other side.

But when her little brother crashes through the door, blinded by something he can't describe, Arty begins to question. And when he slaughters everyone in the house but her, she realises that they've been lying all along.

There aren't only four realms - there are five.

And getting to the fifth is the only way to save her brother.