Snape is a little bit nicer than I imagine him, but everyone else in the story is perfectly in character.  I really like how you've brought Dudley along.  Great job, I'm looking forward to your next chapter.

Wow, this was great.  I've never seen Tom Riddle given a plausible motive in trying to live forever.  You conveyed his thoughts very well. It almost fits canon, even, except for the fact that Riddle didn't learn about Horcruxes until some time after he killed his father.  But I don't think anyone will mind the diviantion from canon, I certainly don't.  

 I rather liked your Circe riddle, too.  Very creative. 

I think you've got a good start, I thought your descriptions of the wizarding world at war were very believeable.  However, I do think your need to be careful with your characterization of Harry and his impending romance with an original charcter (unless I'm assuming too much).  You've made Harry very independent and given him a grasp of magic that he never displays in the book, and then he's angry at Ginny on top of that when all she did in the book was try to avoid hurting him.  Combining that characterization with an American girl who has some sort of seer/prophetess power is a recipe for cliche if you are careless. 

All in all, though, I am curious to see where you are going.  Keep writing.

On the whole, you did a very nice job with this chapter.  I find Matt's bounciness endearing, though he played a rather small role in this chapter.  My only complaint is that I think you lost a little bit of Harry's character with: “No, not many would have done what you and your family did. I know plenty of people that would have cracked another one of my ribs and left me there. No one would take a stranger into their home.”  It just seemed unnecessarily angsty.  But you are the author.  

If you still need a beta reader, you can email me at annathecubsfan@gmail.com.  You can usually expect same day feedback from me.  I don't consider myself harsh, but I am critical, so be forewarned.

Hey, good to see an update.  I liked this chapter.  I'm glad you came back to Harry's friends; I hate it when authors just throw them away.  Nice job, keep up the good work.