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Rainbow in the Dark

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The Vale of Twilight adpack icon.jpg
DDO Point icon.png Requires access to adventure pack: The Vale of Twilight

The Den of Obscurity is a dark, treacherous series of caverns largely untouched by man for thousands of years.

Rainbow in the Dark
Heroic level: 16
Epic level: None
Duration: Very Long
Heroic XP:  ♣4,860Solo/Casual ♦8,433Normal ♥8,766Hard ♠9,099Elite
Epic XP: N/A
Takes place in: Den of Obscurity
Bestowed by: Walther Daedal
NPC contact: Walther Daedal
Quest acquired in: The Vale of Twilight
Patron: The Twelve
Base favor: 8
Free to Play: No
Extreme Challenge: No
Rainbow in the Dark map (legend )
Loading screen


While exploring the Vale of Twilight, you happened on the Den of Obscurity. The underground lair will prove difficult to traverse due to its lack of light.

  • Reaching the Den of Obscurity automatically bestows quest.

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


  • Pick up the illuminated sceptre
  • Explore the Den of Obscurity
  • Place scorpion crest in socket
  • Solve the secret of the Rainbow
  • Search the chamber for treasure
  • Defeat the ancient guardian
  • (Optional) Slay Memnezerez: +20% Bonus.( ♣972 ♦1,687 ♥1,753 ♠1,820 )

What to Expect

  • Traps (random, some undisarmable)
  • Collapsible floors
  • Spawning/respawning monsters
  • Puzzles (mandatory: rainbow puzzle and optional: clock-like puzzle)

Known Traps

Trap DCs

  • Pike Traps (Like ones in the Reaver's Fate)
  • Button in intersections summon fire elementals
  • Trapped portal randomly before the shrine, can be disabled, otherwise you need to kill the elementals to be teleported back.
  • Three traps on the way to the optional chest.

Tips and Misc

  • Radiant Arc - +5 Scepter+5 Scepter: Weapon: Weapon short description.: Everbright, Spellcasting Implement +15Spellcasting Implement +15: Passive: +15 Implement bonus to Universal Spell Power., ArchmagiArchmagi:This item grants the wearer +200 maximum spell points. Sorcerers and Favored Souls gain up to double spell points from items., Potency +56Potency +56: Passive: +56 Equipment bonus to each Spell Power., MetallineMetalline: Metalline bypasses any metal based damage reduction. (Adamantine, "Alchemical, Silver", Byeshk, Cold Iron, Mithral), Blinding Flash Blinding Flash
    Caster level: 5
    Charges: 3 (3/day)
    3 Charges (Recharged/Day:3) (Minimum level 14, Drops on Leaving Adventure)
    • One player should equip the scepter, which will illuminate a short distance around them. The illumination persists even while dead, but if they leave the quest, the scepter is dropped.
    • Keep in mind that the item has minimum level requirement of 14 level.
    • Cosmetic weapons block the illumination effect.
    • This special weapon can be wielded by Monks without becoming uncentered.
  • Rainbow puzzle: Simply jump on each button until it's lit in the color desired. With the door in front of you, starting on the left end: set the colors to Red, Orange, Yellow, Green, Blue, Indigo, Violet. (For players who are colorblind or have monitors with poor color resolution, an on-screen caption will display the color you've just set.) Some people get fancy by un-lighting all the buttons, then running down the row repeatedly, skipping one more button on each run, but this isn't necessary.
  • Clock puzzle: The lever that makes the floor fall is random. Russian roulette, one mistake and you're falling onto lots of pointy things.
  • A chest found in a hidden, long room requires a strong Search and Disable Device DC to find and disable control boxes traps that cause the floor to fall, making chest access impossible. Keep the rest of the party out of that room as your Rogue or Artificer does their work.
  • Useful buffs
    • Acid resist
    • Electricity resist (for casters and gnoll arrows)
    • Fire resist (for the end boss).
  • Useful gear: Everbright (Rust Monsters), Summoned Repair Shop.
  • With recent updates to improve game performance, Lantern Archons and similar summons no longer work as alternative light sources if the scepter wielder is separated from the party, or to scout ahead. Alternate graphics effects caused by Shadow Walk still work.

Basic walkthrough:

  • Have a caster grab the Radiant Arc and wield it. Go straight ahead slowly and kill stuff - the mobs you get depend on the instance but tend to be in small groups. Jump down the hole when you get to it, turn around and basically follow the path east back the way you've come - except you're on the lower level now. The path will curve to the south.
  • When you get to the intersection, go left (east). Watch out for the button on the floor if there is one in your instance. A short way down the corridor, there is a three-way intersection. Turn right if you want to try for the "clock puzzle" chests, or fight your way down the rest of the corridor and get the Crest of the Scorpion. Fight your back to the first intersection or cast Dimension Door and kill off the stuff that has respawned.
  • When you get to the intersection again, go west. Fight your way down the corridor, put the crest in the door and eventually you'll get to a shrine. When you approach the shrine, you'll be teleported to a small room where you will need to kill four Fire Elementals. Once you've dispatched them, you'll be teleported back to the shrine.
  • Continuing south past the shrine are a bunch of windlasher gnolls. Take them out and turn right (west). Keep going until you get to the silver key. There is a boarded up passage here - smash down the boards if you want to go for the optional beholder chest.
  • Go back to the gnoll intersection. Turn right (south) and cross the pit.
  • At the next intersection, either:
    • Go right (west) if you have a rogue who can disable the traps. If you can't disable the traps, you will not be able to access the chest.
    • Go left (east) towards the end of the quest. Complete the puzzle, park the Radiant Arc, buff yourselves senseless, defeat end boss Turun-Palo (red-named Fire Elemental, CR29 on elite) and loot the chest.


  • Several of the Vale quest names are references to song names from ~80s hard rock/heavy metal bands:

Bonus XP

  • Aggression bonus: ~140 (Hard: ~170, Elite: ~190) or more monsters killed +10% Bonus.( ♦843 ♥877 ♠910 )
  • Tamper bonus: 3 or more traps disarmed +10% Bonus.( ♦843 ♥877 ♠910 )
  • Neutralization bonus: 4 or more traps disarmed +20% Bonus.( ♦1,687 ♥1,753 ♠1,820 )
  • Ingenious Debilitation bonus: 5 (Hard/Elite: 7) or more traps disarmed +30% Bonus.( ♦2,530 ♥2,630 ♠2,730 )
  • Observance bonus: 2 or more secret doors discovered +8% Bonus.( ♦675 ♥701 ♠728 )


  • NPC rewards: Random item (up to 15th level accessories, up to 14th level weapons and armor)


Monster Information

Named Monsters: