WOAH!! Just - WOAH!! :-O I'm. completely. gobsmacked. Generous of him to forgive Hannah, but I genuinely believe she was forced into it, insofar as it is possible to be forced to take the Dark Mark, and her acceptance trial seems to have been killing someone with "Avada Kedavra", which I consider the least dark of the Unforgiveables. Sure it kills, but so can "Reducto", "Sectumsempra" and quite a few other spells, many of which are not actually considered to be Dark.
Anyway, good riddance to Snape and Dumbledork and I'm glad Neville managed to evac. and save him, Hermione and Luna. Poor George(?) though, is now the last Weasley left - why did you do that?