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Don't Drink the Water

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The Eveningstar well has become poisoned. No doubt, the Drow are responsible somehow. Speak Unmar Halberg, the stonemason, in Eveningstar, and he will lower you into the well so that you can investigate.

Menace of the Underdark adpack icon.jpg
DDO Point icon.png Requires access to adventure pack: Menace of the Underdark
Don't Drink the Water
Heroic level: None
Epic level: 22
Duration: Long
Heroic XP: N/A
Epic XP:  ♣8,351Solo/Casual ♦14,373Normal ♥14,828Hard ♠15,282Elite
Takes place in: The Eveningstar Well
Bestowed by: Unmar Halberg
NPC contact: Unmar Halberg
Quest acquired in: Eveningstar
Patron: Purple Dragon Knights
Base favor: 8
Free to Play: No
Extreme Challenge: No
M don't drink the water.png
Loading screen


The Eveningstar well has become poisoned. No doubt, the drow are responsible somehow. Speak Unmar Halberg, the stonemason, in Eveningstar, and he will lower you into the well so you can investigate."

Spoiler Warning: Information below this point can be considered spoiler material!


  • Find the poison's source upstream
  • Pass the Yuan-ti Barrier
  • Pass the second Yuan-ti Barrier
  • Pass the third Yuan-ti Barrier
  • Discover how the Yuan-ti are poisoning the water
  • (Optional) Search the Yuan-ti's secret chest — Bonus (5%): Epic( ♣418 ♦719 ♥741 ♠764 )
  • (Optional) Heal the Dryad Trees without killing the Dryads — Bonus (7%): Epic( ♣585 ♦1,006 ♥1,038 ♠1,070 )

What to Expect

  • Point of no return

Known Traps

Tips and Misc

  • The Yuan-ti secret chest is in north-eastern dead-end section under the waterfall. You must swim through a short underwater passage to find this area. You will swim against the current for a very short segment; a Swim score as low as 2 will be sufficient to advance, however that will take some time and you'll risk drowning if you don't have any source of Underwater Action, Water Breathing or an equivalent ability (if you don't usually breathe you obviously don't need to worry).
    • The chest is guarded by a few Yuan-ti
    • The chest is locked Lock DC, and the healing elixir to heal the trees is inside it.
  • Applying the remedy to poisoned trees (click the roots and use the dialog) causes the hostile dryad to switch sides and fight your enemies instead. There are two, one by the shrine and one by the second barrier.
  • There are three set of Yuan-ti barriers. Each is guarded by a boss.
    • At first the boss is an NPC. You must fight off waves of Yuan-ti (three waves on normal) before the boss fights you.
  • The green pools of liquid are acid. They aren't very big, so it should be easy to avoid them.
  • The final shrine at the end does not spawn until the fight is over. Once you use the last rest shrine, you will have a point of no return (marked on the map as Drop down point/shaft). So, once you go to engage the final boss, there are no more shrines until the boss is dead.

Bonus XP

  • Aggression bonus: 51 or more monsters killed +10% Bonus. No experience numbers available.
  • Onslaught bonus: 65 or more monsters killed +15% Bonus. No experience numbers available.
  • Conquest bonus: 80 or more monsters killed +25% Bonus. No experience numbers available.


  • Chests: 4
    • 2 on ledges that require jumping
    • 1 optional for Search the Yuan-ti's secret chest
    • 1 for killing Tharmalos (Green Dragon) at the end - Chance of random commendation and Flawless Green Dragon Scale
  • Collectables: Four
    • Adventurer's Pack shortly before the secret chest.
    • Bones in a crevice to the east before the Yuan-ti's second barrier
    • Adventurer's Pack on a ledge past the second chest on a ledge
    • Adventurer's Pack in the southeast corner of Tharmalos' lair
  • NPC rewards: NPC rewards: Standard, Select from 8


Name(picture) CR Type Race
 ♦27Epic Normal ♥31Epic Hard ♠48Epic Elite Dragon Green Dragon
Dire Bear(view)
Monster DireBear official.png
 ♠26Elite Animal Bear
No pic.jpg
 ♦25Epic Normal Monstrous Humanoid Yuan-ti
No pic.jpg
 ♦24Epic Normal ♠44Epic Elite Monstrous Humanoid Yuan-ti
No pic.jpg
 ♦25Epic Normal ♠46Epic Elite Monstrous Humanoid Yuan-ti
Dryad Tree(view)
Dryad Tree.jpg
 ♦20Epic Normal Fey Dryad
CRs missing! Fey Dryad
 ♦9Normal ♦18/21Epic Normal ♥24Epic Hard Elemental Muckman
Vine Horror(view)
Vine Horror.jpg
 ♠25Elite ♦21Epic Normal ♥28Epic Hard ♠53Epic Elite Plant Vine Stalker
Water Elemental(view)
Water Elemental.jpg
CRs missing! Elemental Water Elemental
Yuan-ti Abomination(view)
Yuan-ti Abomination.jpg
CRs missing! Monstrous Humanoid Yuan-ti

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