- HBO is expanding the "Game of Thrones" universe with another prequel series.
- "A Knight of the Seven Kingdoms" takes place between the main series and "House of the Dragon."
- It's based on George R. R. Martin's novellas and follows the adventures of a knight and his squire.
"House of the Dragon" season two wrapped up on Sunday, but "Game of Thrones" fans have a second prequel to look forward to in 2025: "A Knight of the Seven Kingdoms."