Lione told you that the Guardians he had send to Asmodae on a scouting mission hadn't returned. He asked you to go to the Plateau of Retribution in Nosra and find out if something happened to them. You learned on the Plateau of Retribution that the Daevas were to be sacrificed in a bizarre ritual. You briefed Lione about the situation, who promised to inform his superiors immediately and was pleased that you had returned safely.