Daemon conquers Harrenhal in "House of the Dragon" season two, episode three.
Ollie Upton / HBO
- The latest episode of "House of the Dragon" introduces another key character for the upcoming civil war.
- The key character appears to be Alys Rivers, a witch who can see the future.
- Here's what to know about the character and her possible future in the series.
Warning: Spoilers ahead for "House of the Dragon" season two, episode three, and for the book "Fire and...