Animate Nightmare

Whereas animate dreams form from the fears of specific individuals, animate nightmares are spawned by the terrors that beset civilizations. An animate nightmare's appearance depends on the type of fear that created it, but, like fears, result in similar forms.

Emigrants From Dreams

Animate nightmares often haunt the ruins of the civilization that birthed them. Others are drawn to Jandelay, the enigmatic demiplane where the fragments of dead worlds are preserved for all eternity, or to Abaddon, where apocalyptic nihilism is the rule. These latter nightmares might stay close to their "parent" civilizations, while others wander the broken avenues of multiple worlds, feeding off the traces of fear that linger in those places.