EntertainmentTVFantasy ShowsHouse of the DragonHouse of the Dragon season 2 has introduced Alys Rivers – who is she and why is she so important?When you purchase through links on our site, we may earn an affiliate commission.Here’s how it works. EntertainmentTVFantasy ShowsHouse of the DragonHouse of the Dragon season 2 has introduced Alys Rivers – who is she and why is she so important?When you purchase through links on our site, we may earn an affiliate commission.Here’s how it works. When you purchase through links on our site, we may earn an affiliate commission.Here’s how it works. (Image credit: HBO/Sky) Warning: This article contains spoilers for House of the Dragon season 2. House of the Dragon season 2has seen Daemon Targaryen sent to Harrenhal, where he’s met an intriguing new character in Alys Rivers. In episode 3, he arrives at a crumbling castle, which is still recovering from the devastating fire, to claim it for the Blacks. However, as well as encountering Simon …