The full plotline is this:
The vampire overlord Savanar Blackwing has allied with the great demon Malfegrus in order to bring a permanent night so that the vampires can roam free and feed.
There are also wandering werewolf packs.
I have three dangers so far for the campaign front:
Savanar Blackwing (Lord of the Undead)
*Impending Doom: Sun disappears forever
**Grim Portents: Vampires gain a foothold in the realm; They begin adding to their ranks; A temple for the moon is built; Demons begin appearing; Night falls
Malfegrus (Demonic Prince)
*Impending Doom: The world ends
**Grim Portents (Begin at Demons Appear for Savanar): Souls are harvested; Night falls (same timeline as for Savanar); Vampires are killed; Demons rule
Werewolf Packs (Humanoid Vermin)
*Impending Doom: Humanity is overrun
**Grim Portents: A village is lost; Clans arise; Boundaries are drawn; Humans are hunted for sport; Humans go extinct
I made this completely off of the example provided in the playbook, but it seems like it needs something, any ideas?