"You are a young Sidhe elf looking for a way to prove yourself as a great adventurer. You heard a bard tell of a rumor of a castle to the west that was decimated by an army by a fearsom monster wielding powerful magic. Knowing no fear, you take a boat and set off across the sea to confront this adversary, not knowing the dangers that lie ahead..." This is the whole story about the prequel that rf' is working on for several months and years now. In my eyes, this is one of the most ambitious and interesting Heretic projects to date. It's not released yet but the screenshots look very promising. Check out the teaserdevelopment thread over at ZDoom.org for more information.