Sorry to break it to you, but the Nerevarine didn't got to Akavir. That's just Heartlander gossip. The Incarnate actually got sloppy drunk on sujamma at the South Wall one night. Then while stumbling through a dark alley while trying to find the way to the Silt-Strider station (fellow patrons, when questioned reported that the inebriated adventurer kept slurring something about a quote "really [censored] funny joke that he had to tell Vivec"), got rolled by a bunch of young Skooma-fiends just humming for precious sugar-money. The Hero who slew Dagoth Ur, Almalexia, and bested Hircine met his bitter end atop a trash-heap in Balmora, with a Chitin knife stuck in his kidneys.