The god of nightmares is real? How fun.
A mystery dreamwalker is trying to turn me homicidally insane? Business as usual.
But when a legendary seer gets involved, we end up on a world populated by necromancers. Oops. I'll have to put on my big dreamwalker panties and learn to forgive Valerian's betrayal before we're all killed by Icelus... or zombies... or a deadly virus.