The 'House of the Dragon' Season 3 finale will depict the First Battle of Tumbleton, a key turning point in the Dance of the Dragons. As the battle approaches, three Team Green characters linked to House Hightower emerge as the main candidates to fall in Tumbleton, based on George R.R. Read more 'House of the Dragon' Season 3 Title Sequence Already Spoiled Major Finale Deaths 'House of the Dragon' Season 3 Title Sequence Already Spoiled Major Finale Deaths2. Nevertheless, if HBO follows the broad outline of the First Battle of Tumbleton, Bryndon is firmly in danger. In the source material, Ormund and Bryndon Hightower are killed at Tumbleton, while Gwayne Hightower survives and is not present at the battle.