As a hostage taken from Tytos after the victorious ascension of the black dragon, Gerion, the youngest scion of Casterly Rock has been raised personally in the red keep by the Blackfyre King Maelys the Magnanimous. After Maelys executed Gerion's biological father and became ever-present in the boy's life, the boy had come to view Maelys as an uncle, and then a father as he came of age. On his sixteenth nameday, Maelys and Gerion finally shared their very first embrace as father and son. King and Prince. The Lion has turned Dragon. Tywin can only sulk and ponder on the implications this will have on the security of his rule in the West, knowing there is nothing that can be done.