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Boreas' Treasure Room is a side quest in Divinity: Original Sin.

Quick Walkthrough[]

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Detailed Walkthrough[]

  1. Complete the quest Eternal Winter and defeat King Boreas
  2. Acquire Forgotten Language Of Faery from Victoria, the orc librarian in Cyseal.
  3. Head back to the castle and speak to the most northeastern sentry (x:242, y:252) along the wall next to the Earth statue. It looks like the other generic sentries along the walls.
  4. The answer is 5 (Lurrean). This disables the force field.
  5. Your options for the next door depend on whether you're playing the Classic version or the Enhanced Edition:
    • Classic version: Deactivate the Sentinels by heading to the East wall before the stairs and pulling a chain on the wall. This option is not available in the Enhanced Edition.
    • Enhanced Edition: Since the door is only open when the last pair of sentinels (which are invincible) don't detect any intruders, brute force can't get you through. However, you can use a high level of sneak or invisibility to have one member get past all the traps, and then teleport the rest to join.
    • Alternatively, sneak or use invisibility to have one member get close enough to the open door to throw a teleporter pyramid through.
    • The left sentinel controls the gate, the right sentinel the lava trap right in front of it. You can use the iron crate to block the sight of the left sentinel, then either use a skill or resistances to pass the lava summoned by the other sentinel.
  6. If you have the Royal Guard Talisman from The Chest by the Well, wear it now and stand in the center of the grate for about 10 seconds to receive the Winter Ring (5000 XP).
  7. Use Forgotten Language Of Faery to unlock the runed chest.


  • Winter Ring
  • 500 XP
  • Winter Amulet
  • Well Teleportation Scroll
  • The Last Weresheep