Continue tracking the Knight.
- With the essence of Takul-Dar, the Unbreakable run off again, you will need to continue to chase it down.
- Head up the stairs in the left-hand portion of the room and into the hallway beyond it.
- Turn to the left and head into the massive hole in the floor the Hive made.
- Drop down into its depths and press forward into the dark tunnel.
- This leads you into a large dark room with a few Shriekers in it.
- Go to the far end of it and approach the Hive Runes at the far end of the hallway.
- Interact with them to trigger one of the nearby Shriekers.