This article will guide you on how to complete the objective “Find a Way to Finish Necromancy of Thay” for the quest “Unlock the Ancient Tome” in Baldur’s Gate 3 (BG3).
Head to Lower City to unlock the final page of “The Necromancy of Thay” and ‘Find a Way to Finish Necromancy of Thay’. Act III will bring you here.
Go to the second level of the building called Sorcerous Sundries. There are four portals there but don’t interact with them. Go to the left side to find a Metal door.
Ungroup your party members and then cast a Greater Invisibility spell. Lockpick the Metal door to enter the room. Inside you will find several bookshelves.
Interact with the “Clasped Book” book to open a portal. Enter the portal and this will transport you to the Sorcerous Vault.
Pass through the first Oak door, then the second and third locked doors. You can smash these locked doors using Soualbreaker Greatsword. Finally, you’ll arrive at a hexagonal chamber with several entrances.
In the minimap you can see the name of the room is Silverhand. Pass the “Sleight of Hand” check and enter the door with the name Silverhand Door. Simillary pass through the Evocation Door and Wish Door.
Pull the lever in the last room to open the Elminster vault.
Return to the previous area and enter through the “Gate” door. Also, try not to be hit by the bouncing lights.
Then go through the Transmutation door.
Jump over the trap in the next area and enter the Elminster vault through the single open entrance.
Break the display case containing and read the Tharchiate Codex
Finally, open your inventory and read The Necromancy of Thay
