The Falion Secret That Was Never Revealed In Skyrim
In Skyrim, Morthal's very own Redguard mage, Falion, had a secret so important an entire quest promised to reveal his mysterious goals. Unfortunately, that never quite happened, and players that finished Falion's quest were left with more questions than answers.
After hearing rumors that Falion is wandering around town at night, the Dragonborn overhears Falion's daughter Agni explaining that she has nightmares about her father fighting monsters each evening. If the Dragonborn chooses to speak with Falion about what he's up to, he becomes enraged and attempts to get the Dragonborn to swear silence on the matter.
Later in the game, players can opt in to a quest that forces them to cross paths with Falion once again. In "Rising at Dawn," which is only available if the Dragonborn has become a vampire, players must return to Falion and undergo a ritual in order to be cured of vampirism. After the player brings Falion a filled black soul gem, they can be cured, but Falion never explains why he knows how to cure vampirism or what he's doing out in the swamps each night. It's a secret as bizarre as the identity of the Dragonborn's mysterious "friend."
Is Falion battling the Volkihar?
Reddit user Away_fur_a_skive speculates that Falion protects Morthal from the Volkihar, the most dangerous vampires in Skyrim, who reach up from beneath frozen lakes to snag their victims. While the game itself does not confirm this theory, it seems likely, especially given Falion's expertise in the area of curing vampires. It's possible that he's protecting Morthal by curing any vampire that comes near the town, but Agni's nightmares indicate that Falion might have a few combat abilities as well.
There are a number of confusing details in Skyrim that have no good explanation, but that's part of what makes the game so fun, even all these years later. Including details about the world that often don't connect to the main quest allows Skyrim to feel like a more immersive experience, with its own lore and logic behind the world.
And really, leaving what Falion was doing out in the wilderness up to the players' imagination is more fun anyway.