The Crux of Darkness is a quest that ultimately rewards an Essence of the Oversoul, which is used to upgrade Eidolon Ally into Necrochasm. The quest is given upon obtaining a Husk of the Pit, which can drop randomly after killing a Hive enemy.
|Born of the Pit|
|""The Husk of the Pit is a foul creation of the Hive. Do not let it corrupt your Light." —The Speaker"
|The Speaker Knows|
|""The power of the Darkness can seem compelling. But the Light will always overcome it." – The Speaker"
|Secrets of the Hive|
|""Every Hive Prince keeps his secrets close. Knowledge is part of their power." —Eris Morn"
|Ally of the Dark|
|""Hive energy courses through Eidolon Ally. Only their blood will feed its hunger." – The Speaker"
|Return to Eris Morn|
|""I stole this from the Hive long ago. It helped me in a dire time." —Eris Morn"