Hmm...but what does Harry consider his? And what changed him so in the past that he would go this far to get what it is he wanted? If he changed at all, that is. Tracey? As in Tracey Davis? Is she the one that is killing the other Parkinson's?
This is a very interesting idea and all. From the hints in the conversation between all three I gather that this is taking place after Deathly Hallows, but before the DH Epilogue, correct?