Tonight, your party's greatest nightmare... is the one you create.
 
Bring fear to the table with Ravenloft: The Horrors Within, the complete book of nightmares. As the Dungeon Master, you are the mastermind of pulling the strings, wielding everything Ravenloft has to offer as instruments of fear in your campaign of terror.
 
Inside this cursed vault, you will uncover:
 
16 Domains of Dread, including the new cosmic horror domain Innsmouth.
17 Darklords for your party to face or flee from, equipped with challenging stat blocks.
7 subclasses (including the new Reanimator and Hollow Warden), 4 species, 4 backgrounds, 2 Origin feats, and 9 Dark Gifts for building tortured protagonists.
10 genres of horror from gothic to dark fantasy.
A bestiary of 41 monstrosities and 10 domain denizens for your party to encounter.