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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
Purchase: Menace of the Underdark
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: Spoiler material below this point!


  • 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 (10%): Epic( ♣835 ♦1,437 ♥1,483 ♠1,528 )
  • (Optional) Heal the Dryad Trees without killing the Dryads — Bonus (15%): Epic( ♣1,253 ♦2,156 ♥2,224 ♠2,292 )

What to Expect

  • Point of no return

Tips and Misc

  • Buffs: Fire resist for Yuan-ti casters, acid resist for end fight.
  • Malchor's Undersun Goggles will function within this quest.
  • The Yuan-ti secret chest is in the eastern dead-end section under the waterfall. You must swim through a short underwater passage to find this area. You will swim against the strong water current for a very short segment; a Swim score as low as 2 will be sufficient to advance, however that will take some time – some form of Underwater Action may be advised.
    • The chest is guarded by a few Yuan-ti
    • The chest is locked (Lock DC).
    • The healing elixir for the optional to heal the trees is inside this chest.
  • Optional – Heal the Dryad Trees: If you opened the secret chest (see above), click the tree roots and use the dialog.
    • There are two trees, one by the shrine and one by the second barrier.
    • This also causes the hostile dryad to switch sides and fight your enemies instead.
  • There are three Yuan-ti barriers. Each is guarded by a boss. You must fight off waves of Yuan-ti (three waves on normal) before the boss fights you.
  • The second shrine doesn't spawn until the fight at the third barrier is over.
    • Immediately after this is a drop down shaft and point of no return (without Dimension Door and a long run) – use it or lose it.
  • The green pools of liquid are acid. They aren't very big, so it should be easy to avoid them.
  • There is a final Resurrection shrine after the boss is dead.

Bonus XP

  • Aggression bonus: 51 or more monsters killed +10% Bonus.( ♣-0 ♦-0 ♥-0 ♠-0 )
  • Onslaught bonus: 65 or more monsters killed +15% Bonus.( ♣-0 ♦-0 ♥-0 ♠-0 )
  • Conquest bonus: 80 or more monsters killed +25% Bonus.( ♣-0 ♦-0 ♥-0 ♠-0 )


  • Chests: 4
    • One on a ledge at the first south-west bending (requires jumping)
    • One for "Search the Yuan-ti's secret chest" optional (locked, contains "Remedy")
    • One on a ledge past the second barrier (requires jumping)
    • One End chest – Chance of random commendation and Flawless Green Dragon Scale
  • Collectables: 4
    • 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: standard


Name ( picture ) CR Type Race
Dire Bear( view
Dire Bear.png
 • edit )
 ♥27Epic Hard ♠42Epic Elite Animal Bear
Dryad Tree( view
Dryad Tree.jpg
 • edit )
 ♠14Elite ♦20Epic Normal ♥25Epic Hard ♠39Epic Elite Fey Dryad
Dryad( view
 • edit )
 ♦17Normal ♦20Epic Normal ♥25Epic Hard ♠39Epic Elite Fey Dryad
Fless-onas( view
 • edit )
 ♦25Epic Normal ♥30Epic Hard ♠46Epic Elite Monstrous Humanoid Yuan-ti
Gresl-glis( view
 • edit )
 ♦24Epic Normal ♥29Epic Hard ♠44Epic Elite Monstrous Humanoid Yuan-ti
Mudman( view
 • edit )
 ♥26Epic Hard Elemental Muckman
Saz-sass( view
 • edit )
 ♦25Epic Normal ♥30Epic Hard ♠46Epic Elite Monstrous Humanoid Yuan-ti
Tharmalos( view
 • edit )
 ♦27Epic Normal ♥33Epic Hard ♠48Epic Elite Dragon Green Dragon
Vine Horror( view
Vine Horror.jpg
 • edit )
 ♥26Epic Hard ♠40Epic Elite Plant Vine Stalker
Water Elemental( view
Water Elemental.jpg
 • edit )
 ♦21Epic Normal ♥26Epic Hard ♠40Epic Elite Elemental Water Elemental
Yuan-ti Abomination( view
Yuan-ti Abomination.jpg
 • edit )
 ♦23Epic Normal ♠43Epic Elite Monstrous Humanoid Yuan-ti
Yuan-ti Sharp-Eye( view
Yuan-ti Sharp-Eye.jpg
 • edit )
 ♦23Epic Normal ♥28Epic Hard ♠43Epic Elite Monstrous Humanoid Yuan-ti