This Elder Scroll was originally in the possession of Valerica, Lord Harkon's estranged wife. She took it from Castle Volkihar sometime in the early First Era and fled to the Soul Cairn so that Harkon could not complete the Tyranny of the Sun prophecy.
If the Dragonborn sided with the Dawnguard, the scroll, along with the Sun Elder Scroll, can be sold to Dexion Evicus for 6,000 after completely finishing the main quest. If the Dragonborn sided with the vampires, it cannot be sold.
- When travelling with dead thralls, if the scroll is read, they might die.