Alduin, Bane of Kings watched as the gods sent him down to Oblivion. He hurtled through the dark, foul air for days. After five days, he landed. His scales ached with an agony hitherto unknown to him. "Akatosh," he hissed venomously. "You shall pay for taking away what is mine!" In his anger, the World-Eater spoke great words of power. The void in which he was present shook as a storm of lightning swirled through the air, charging the dark plane with pure energy. His Thu'um was still present, but not nearly as powerful as before.
Alduin had not known pain in all of his existence. The great god that he once was could bend reality to his will. Now, he was merely a husk of his former self. Alduin shouted again, and a hole was carved into the wall. Wait... wall? The dragon lord took to his wings and flew towards the cavern wall. He exited through the gaping hole that he had created. Outside, he found a landmass of black rocks and flitting ghosts. The sky was a purplish hue. No, not here! Alduin roared, and the world shook under his rage. The Aedra had the audacity to send him... here!
The years passed. Alduin waited, hungering for revenge. The Dovahkiin was now an old crone, broken down by age. The Bane of Kings entered the minds of men, corrupting them, twisting their beliefs. They would do his bidding until he could manifest on Tamriel again. The pain was still there. But Alduin's hunger was insatiable, and could be rivaled by nothing. He chuckled to himself. But for now... he had another realm to tyrannize.