After completing the quest and obtaining the Nova Mortis, I heard that you simply go to Zavala to recieve the quest for Abbadon, the solar version of thunderlord. However, there is always the icon above Ikora signaling a quest (a purple daimond with an upside down triangle and inside of that a crown). However, when I interact with her, she just shows her inventory. Any tips or help? To note is that I DO have the Nova Mortis.