When Icarium is recruited by the Tiste Edur he assaults the Throne of Shadow, there coming into contact with the Eres 'al which healed the mental damage/scarring from his wounding of Kurald Emurlahn.
He assaults the Throne of Shadow, there coming into contact with the Eres 'al. This contact with the Eres'al healed the mental damage /. This mental damage/was scarring from his wounding of Kurald Emurlahn. Icarium is recruited by the Tiste Edur.