Sarevok's Secret

Sarevok's Secret is a side quest in Baldur's Gate: Siege of Dragonspear.

Acquisition
This quest can be gained by finding the Secret Room on the second floor of Korlasz's Tomb and retrieving the Page from Sarevok's Notes during the Interlude between Chapter 7 and Chapter 8.

Completion
This quest can only be completed by going to the Ruined Temple of Bhaal in Chapter 10. After acquiring the Ritual Room Key from Ziatar, the player will be able to reach a corridor with a wall bearing six mounted masks, in two rows of three.

If the masks in the slots 3, 1 and 4 are pressed in that order (the upper row corresponds to masks 1-3, the lower to masks 4-6, both in a left-to-right order), a secret door will open and reveal a hidden room containing a Shadow Aspect. If this powerful foe is slain, a locked and trapped chest can be looted for a unique book, Godsbane, and a unique magical Short Sword +3; the Fractal Blade.