The Heart of Mystery

 is a location in.

Background
Deep inside the titan body of Wael, and final area of The Forgotten Sanctum. Here the Watcher will face off against the Oracle of Wael and Fyonlecg.

Quests

 * The Inner Mysteries

Points of interest

 * Fyonlecg's body.
 * Artery polyps: Can be killed (or popped, rather) in order to take down the Oracle.
 * Arcane Channels.

Characters

 * Oracle of Wael
 * Fyonlecg

Loot

 * The Mask of the Weyc: Found on Fyonlecg's body. Needed for the achievement One of Them.
 * Ring of Clenched Muscle: Looted from the dead body of the Oracle of Wael.