KaeYoss |
An Adventure Path of Gothic Horror sure would be fun. But I think we should leave the Whispering Tyrant out of this, at least as ultimate adversary. Not only do I think he's too powerful for characters to fight, I also think that he should stay a while longer. A more or less official adventure where you end up killing him would put an end to that, I think.
Of course, you can let him escape and the players must imprison him again.