We've got to save the school again.

My Harry Potter Spoiler of Doom is: Harry is turned into a house plant by Gilderoy Lockhart after signing a massive advertising contract with McDonalds. Get your Harry Potter Spoiler of Doom

In other news, I saw HP5 again today with Mel, and I was thinking that the answer to Voldemort's telling Harry that "you will lose everything" is Luna saying, "Things we lose tend to come back to us eventually, though not in the way we expect them to." And I've generally found that to be true.