Last year the Wisconsin State Journal ran a contest for the best last sentence in the last book of the Harry Potter series. The published candidates fell into a few classes: comeuppance for his muggle family, victory, defeat, celebration, etc. I can't find the list anymore, and frankly I didn't care for most of them. The idea is fun, though. I hereby waste electrons in predicting that the last line of her last Harry Potter book will be something like:
"You know they'll always welcome you here at Hogwarts: just say the word and we'll come," Hermione told Harry as they turned away from the glass case displaying Harry's splintered wand.
Too much of a downer? Have a better line? Email it. (I don't have comments set up.)