Ormund Has Been Playing the Long GameThe Season 3 finale trailer shows Ormund's army closing in on Tumbleton. Read more 'House of the Dragon' Season 3 Finale Trailer Teases Epic First Battle of Tumbleton 'House of the Dragon' Season 3 Finale Trailer Teases Epic First Battle of TumbletonIn George R.R. During the battle, Hugh and Ulf unexpectedly defect to the Greens, turning Vermithor and Silverwing against their former allies. If the finale follows the direction laid out in both the trailer and Martin's source material, Ormund's quiet negotiations may prove as decisive as any dragon battle. 'House of the Dragon' Season 3 Episode 8 has not yet been given an official title.