Necromancy of Thay | Baldurs Gate 3 Wiki

Necromancy of Thay is an item in Baldur's Gate 3 that can provide permanent buff. You can find this tome in quest Search the Cellar.

"It. Is. Not. Too. Late."

Necromancy of Thay Information

• Effect: Gain Speak with Dead once per long rest.
• Once obtained, this Status Effect is permanent.

How to Acquire Necromancy of Thay

Necromancy of Thay can only be obtained by completing the Act 1 Quest Search the Cellar in the Blighted Village. In order to obtain the Necromancy of Thay Status Effect, you must successfully find a tome of the same name during the quest. Do note that at the end of the quest, you may choose to give the tome to either Astarion or Gale, or choose to destroy the tome, however, doing either of these actions will prevent you from ever obtaining the Necromancy of Thay Status Effect. Please visit the Search the Cellar page for a full walkthrough on finding and unlocking the Necromancy of Thay tome for use.

Before reading the tome, it is recommended to quickly save the game, as you will be met with three Wisdom Saving Throws of increasing difficulty. This will come in handy especially for player characters with no Proficiencies in Wisdom, as your character must be the one that reads from the tome to gain this Status Effect. Keep rolling until you succeed in one Saving Throw, and you will obtain the Necromancy of Thay Status Effect.

To fully unlock the book, you need to enter the Sorcerous Vault in Baldur's Gate.

To access the vault, sneak into the office of the Sorcerous Sundries, then use the portal there. 

Inside the vault, you can find lots of scrolls and other loot. Don't forget to read The Red Knight's Final Strategem, it gives you a Scroll of Artistry of War.

On the other end of the vault, there are three sealed doors, one leads to Elminster's Vault, and one leads to Karsus' Vault. Both two vaults are locked by now, and you can only open the Silverhand door.

Disarm the traps in the new room, then open the door marked Evocation.

Again, be careful of the traps in the new room, you can put a misc item on the pressure plate to disarm them. Behind the "Wish" door there is a lever to unlock the Elminster's Vault.

Inside Elminster Vault, you will find The Tharchiate Codex which gives you the right knowledge to finish reading Necromancy of Thay. Read The Tharchiate Codex gives you a curse, you can use the Remove Curse spell to counter it.

Now you can finish reading the Necromancy of Thay (DC 20). It gives you a powerful spell called Danse Macabre. (Summon 6 ghouls to fight for you.)

How to Remove Necromancy of Thay

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Necromancy of Thay Notes & Tips

• To access Karsus' Vault, choose Abjuration door, then Silver door.
• Use turn-based mode to avoid/disarm traps with minimal damage to the party.
• Notes and tips go here.