Harrenhal isn’t the only thing driving him to madness
source https://www.polygon.com/24196867/house-dragon-targaryen-daemon-visions-why-lore-books
Daemon’s nightmares tie him to a much bigger Targaryen tradition
Harrenhal isn’t the only thing driving him to madness
source https://www.polygon.com/24196867/house-dragon-targaryen-daemon-visions-why-lore-books