Jonah’s World and the Black Keep

The world where Jonah lives is flourishing. Admittedly, certain branches of magic are banned, but that’s really for everyone’s safety. Who in their right mind would want to summon demons? The talent for it died out, anyway, during the Crash, so there’s no point in learning about it beyond the basics: summoners destroyed civilisation. Even now, the remnants of those ancient spells linger in the ruins of their towers and castles, making it unsafe for anyone to sleep nearby in case they are drawn into the demon realm in their dreams; if that happens, the unfortunate person will likely die in their sleep. If they’re lucky.