From publisher blurb:
Vilest of the Vile!
Among the worst evils in the multiverse are demons…and those depraved souls that worship them. Darkest among them are the Doomspeakers, antipaladin champions of demon princes that are inducted into the profane secrets of the Book of Nine Dooms. This unholy tome teaches them a corrupt magic that devours its caster as fuel for the misery and destruction it wreaks upon the cult’s foes.
Demon Cults: Doomspeakers includes:
5 cultist NPCs with stats, including cult leader Narn the Crucifier (CR 15)
New spell: doom of ancient decrepitude
Plots and adventure hooks for party levels 1 to 12
New magic items including a bone whip and primal doom
Using the Doomspeakers in the Midgard Campaign Setting
Give your villains a demonic boost. Show your players a new challenge with Demon Cults: Doomspeakers today!