Jaqen H'ghar is one of three men imprisoned in a cage that Night's Watch member Yoren (the man who saved Arya Stark during Ned's execution) took with him from King's Landing's worst dungeon, bound for the wall. While Jaqen's companions in the cage - the vile Rorge and razor-toothed Biter - are pure scum, Arya senses something different from the man who hails from the eastern free city of Lorathi.