I've gotten past that awful chapter, and now am writing the climactic final confrontation. My heroes are making their way in the Bad Guy's stronghold as we speak.
I've already gotten to make some neat settings. There's a tower, but the Bad Guy isn't in the highest tier of it. In fact, he's under it.
I've introduced a third character who is unlikely to survive until the end of the book.
I need to get back to writing. :) Off to the notebook!