Game of Thrones - the Remix!

What would happen if one of the most famous characters in midieval fantasy fiction ran into a relatively unknown character in futuristic fantasy fiction? Tyrion and Lady Steffana, fly all around the realm, upsetting ladies and lords a like in a virtual reality game, that Steffana is playing!
Unbeknowst to any of the GOT characters- Steffana is playing her own Game of Thrones..and she rewrites the GOT history, while creating her own!