I just mean that it's now common knowledge what the "ending" is as the book has been out for four years and it's pretty unrealistic to expect to know nothing about the story in that case...
I was working on the assumption that as this is a movie forum rather than a book forum there might be people who hadn't read the books but just watched the films so thought I'd use spoilers to be on the safe side.
Expect a Voldemort shaped Tsunami in Deathly Hallows Part II! I expect it is when Ron and Hermione destroy the Horcrux Cup and this is how it defenRAB itself in the Chamber of Secrets.