Mora. The other was taken by Serana's estranged mother, Valerica, when she fled the castle. The player character and Serana journey to a plane of Oblivion known as the Soul Cairn. They locate Valerica and retrieve the final Elder Scroll. Before they return to Tamriel, Valerica warns them to stop Harkon, as he intends to kill Serana to fulfill the prophecy. The player also earns the respect of the dragon Durnehviir, who had acted as Valerica's guardian in the Soul Cairn before being bested in combat by the player, and provides the player with the shout to summon him outside of the Soul Cairn for a while. The player character learns from the Elder Scrolls that Auriel's Bow is located in Darkfall Cave. The player meets with Gelebor, one of the last remaining Snow Elves, and a Knight-Paladin of the Chantry of Auri-El. He instructs the player how to retrieve Auriel's Bow, by completing a series of tasks and defeating Arch-Curate Vyrthur, Gelebor's brother, who has been corrupted by the Falmer. The player character and Serana confront Vyrthur in the Chantry's Inner Sanctum and discover that he is both a vampire and the creator of the prophecy, and desires to block out of the sun in order to disrupt Auri-El's influence in Tamriel, in retaliation for the god allowing him to be afflicted with vampirism. After retrieving the Bow, the player character and Serana confront Lord Harkon in Castle Volkihar. They battle Harkon and slay him, ending the threat to Tamriel and to Serana, and the members of Harkon's court acknowledge the player character as their new master and ruler of the castle. Dawnguard path If the player character refuses Harkon's offer and returns to the Dawnguard, the plot plays out nearly identically, albeit viewed from the perspective of the Dawnguard, with the player being assigned by Isran to recruit his old teammates Sorine Jurard and Gunmar to restore the Dawnguard's numbers. Once the Dawnguard are able to replenish their numbers and reform, including adding Florentius Baenius to the group, Serana makes herself known to the Dawnguard, relaying information about Harkon's plan, and pledging assistance to the Dawnguard, though Isran still has his suspicions of Serana's true intentions. After killing Malkus and freeing Dexion from the enthrallment he was placed under, he returns to Fort Dawnguard to read Serana's Elder Scroll to Isran, before becoming fatigued and Isran allowing him