Sirius Black falls into the veil in the Department of Mysteries, and out of the tapestry in Sansa Stark-Lannister’s bedchamber in the Eyrie.
He claws at the stone wall and rips at the tapestry, but the way is shut.
Once Sansa stops screaming, they exchange pleasantries.
Littlefinger arrests Sirius as a spy, but after Azkaban, Sirius will not go back to prison.
He duels his way past the guards and Sansa helps him escape.
Together, they ride north to reclaim Winterfell.