In last season's finale, the flying dragon death of Prince Lucerys sent HBO's "House of the Dragon" into an immediate emotional death spiral, as sure as young Luke was fatally plummeting to the ground. At the brink of an all-out war between the feuding Greens and the Blacks, mourning Blacks Queen Rhaenyra (Emma D'Arcy) demands revenge for her beloved son Luke's death-specifically against Prince Aemond (Ewan Mitchell), whose out-of-control dragon committed the foul crime.