Wow, this story is absolutely amazing! There are so few 'Harry ends up in an alternate reality' stories that have this kind of caliber, and this one certainly makes it.
I was absolutely tickled pink over Harry pointing out to Dumbledore that he did not kill Lucius to sleep with Narcissa, but rather the other way around. That moment is probably one of my favorite parts (along with Alastor telling Dumbledore about Lucius' death as well).
This latest chapter is amazing as well! Harry finally had a chance to deal with the basilisk, but it seems nothing is ever destined to go smoothly for him. The rooster causes problems, and now Ginny has gotten her hands on the diary. I hope Tom didn't force her to kill Luna or something in order to get down into the Chamber. And I hope Harry's able to get the diary away from her.
Again, an outstanding story and definitely a favorite of mine. Excellent work!