You've created such an intriguing scenario and captured Filius' conflict caused by his two strikingly different cultures. every time he calls the goblins they, it is like a knife in Filius's heart Such a simple phrase but it puts in perspective just how distraught and tormented Filius feels.
Griphook is scripted beautifully. I love the honest complexity you've given him. His determination to respect his ancestor as his heritage demands is understandable, but his tactics are so exploitive and underhanded that it's hard to remember that his people have been waiting a thousand years for an honorable wizard.
This is craftily written and very thought-provoking.