 The player summons and traps a dragon named Odahviing in Dragonsreach , learning from him that Alduin has fled to Sovngarde through a portal located high in the Velothi Mountains , at an ancient fort called Skuldafn . Odahviing , impressed with the player 's Thu 'um and ability to capture him , agrees to fly the player to Skuldafn , claiming Alduin has shown himself as weak and undeserving of leadership over the dragon race . Upon arrival at Skuldafn , the player fights their way up to the portal to Sovngarde . Upon entering Sovngarde , the player travels to the Hall of Valor and meets with Ysgramor , the legendary Nord who , along with his Five Hundred Companions , drove the Elves out of Skyrim . Ysgramor informs the player that Alduin has placed a " soul snare " in Sovngarde , allowing him to gain strength by devouring the souls of deceased Nords arriving there . The player meets up with the three heroes of Nordic legend who defeated Alduin originally , and , with their help , destroys the soul snare and defeats Alduin once more . 
