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Fathom the Depths

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Long ago the giants trapped an invader from another plane inside these crumbling ruins.

The Red Fens adpack icon.jpg
DDO Point icon.png Requires access to adventure pack: The Red Fens
Fathom the Depths
Heroic level: 9
Epic level: 21
Duration: Long
Heroic XP:  ♣2,385Solo/Casual ♦4,204Normal ♥4,432Hard ♠4,660Elite
Epic XP:  ♣11,477Solo/Casual ♦19,779Normal ♥20,428Hard ♠21,078Elite
Takes place in: Ancient Ziggurat
Bestowed by: Craneclaw
NPC contact: Craneclaw
Quest acquired in: The Red Fens
Patron: House Kundarak
Base favor: 5
Free to Play: No
Extreme Challenge: No
M fathom the depths.png
Loading screen

Overview

The Sahuagin have enslaved the local Drow to dig up a powerful magic artifact from the ziggurat in the swamp. Enter the ziggurat, free the slaves, and attempt to retrieve the artifact.


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

Objectives

  • Lower the magical barriers and flood the area
  • Defeat Slomnuc
  • (Optional) Free the Raveneye captives before lowering the barriers (7 total) — Bonus (20%): Heroic( ♣477 ♦841 ♥886 ♠932 ) Epic( ♣2,295 ♦3,956 ♥4,086 ♠4,216 )
  • (Optional) Slay the Treasure Guardian Heroic: — Bonus (50%): Heroic( ♣1,193 ♦2,102 ♥2,216 ♠2,330 ) Epic( ♣5,739 ♦9,890 ♥10,214 ♠10,539 )

What to Expect

  • Traps (fixed, some undisarmable)

Known Traps

Trap DC

  • Sonic (traps are not present until the you flip the barrier lever to flood the area)

Tips and Misc

  • To get to the quest entrance:
  • Approaching from the east, head north of quest entrance on your map. You will see a ziggurat (the entry is at the top of that). Running north from that is a fence line (that you cannot cross), and just east of where that fence meets the base of the ziggurat is the start of a steep fenced path that winds clockwise up to the quest entrance.
  • There is a rest/resurrection shrine at the top, where you enter the quest.
  • Underwater Action items are recommended. But you can get through with -8.5 swimming without any water breathing items or spells.
  • If you want a breakables bonus, try to break breakables before you flip the lever; after, many will be underwater and unbreakable.
  • There are seven captives to rescue.
  • After the barrier is lowered, a waterfall appears at the top of the ladder. The Dungeon Master will tell you it is "impossible" to go against the current, but with Underwater Action and a modified swim score as low as 10, it is indeed possible. Doing so is hardly necessary - the path 'forward' from the lever loops back around - but backtracking to the most recent small chest allows you to bypass several sonic traps.
  • Underwater sonic traps are marked with glowing white spiral drawings on the walls; swim below those to avoid the traps. Be cautious of your party members - some of the traps are oriented to hit everyone behind the person who triggers them, so being careless (or following too closely behind someone who is careless) can get you hit.
  • There is a collectable in the waterfall-nook south of the second rest shrine - the first room where you meet water elementals. It is prohibitively difficult to reach the nook directly unless your Jump exceeds 34; instead, proceed to the next room, defeat the second group of elementals, then turn around. Facing back the way you came, there is debris on the right-hand side; jump on that, then jump across to the other side. You should be able to obtain the collectable without nearly as much difficulty.
  • Generous XP for finishing the optional treasure guardian.
    • The optional treasure guardian is a Gelatinous Cube with a chest inside of it, and you want the key inside that chest.
    • You cannot damage the guardian until all of the runes at the bottom of the cavern are turned off by running over them. Do it quickly because before long air jets will be blowing throughout the caverns (above and below) that will blow you into the jello monster and several nasty traps at the bottom.
    • Once you've turned off all the runes, one tactic to run to the center to finish the fight to avoid the air jets blowing you into the traps and the guardian.
    • Open the chest it drops, grab the key, open the treasure cage, loot the chest.

Bonus XP

  • Tamper bonus: 3 or more traps disarmed +10% Bonus.( ♣239 ♦420 ♥443 ♠466 )
  • Ingenious Debilitation bonus: 4 or more traps disarmed +30% Bonus.( ♣716 ♦1,261 ♥1,330 ♠1,398 )
  • Mischief bonus: 35 or more breakables smashed +8% Bonus.( ♣191 ♦336 ♥355 ♠373 )
  • Vandal bonus: 46 or more breakables smashed +10% Bonus.( ♣239 ♦420 ♥443 ♠466 )
  • Ransack bonus: 56 or more breakables smashed +15% Bonus.( ♣358 ♦631 ♥665 ♠699 )
Notes: It may be possible to get kill bonuses by farming the respawning sahuagin mage and water elementals in the room with Foxpaw, after flooding the area; 81 kills was not enough. It may also be possible to stealth into the boss room and open the door to the treasure room before killing Slomnuc for additional kills.

Loot

  • Chests: 5 (Tip: Both small chests can be accessed early with use of Abundant Step or similar abilities)
    • Small Chest in the room with the first Rest Shrine, accessible after the flood.
    • Small Chest in a passage north-west of the first shrine room, accessible after the flood.
    • Locked Chest behind a secret door (the door located behind the underwater lever near the Sogshadow Moss Patch that gives water breathing).
    • Chest after defeating Slomnuc
    • The sahuagin's treasure chest (with three piles of gold around it)
  • NPC rewards: Random items with total enchantment bonus +1 to +3

Unique Rewards

Last Edited Item Type Enhancements ML Bind Quests
  • Update 48.2
  • 9 months and 27 days
  • BugTime
Boots of the Mire
Boots of the Mire.png
(edit)
Boots  7 Bound to Account on AcquireIcon tooltip.pngBound to Account on Acquire: This item is Bound to Account on Acquire Fathom the Depths, End reward
  • Update 48.2
  • 9 months and 27 days
  • BugTime
Shaman's Beads
Shaman's Beads.png
(edit)
Necklace  7 Bound to Account on AcquireIcon tooltip.pngBound to Account on Acquire: This item is Bound to Account on Acquire Fathom the Depths, End reward
  • Update 48.2
  • 9 months and 27 days
  • BugTime
Siren's Charm
Siren's Charm.png
(edit)
Necklace  7 Bound to Account on AcquireIcon tooltip.pngBound to Account on Acquire: This item is Bound to Account on Acquire Fathom the Depths, End reward
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Named Chest Drop

Last Edited Item Type Enhancements ML Bind Quests
  • Update 50.0.1
  • 2 months and 3 days
  • JJMC89
Dampened Robe of Dissonance
Dampened Robe of Dissonance.png
(edit)
Clothing  7 Bound to Character on AcquireIcon tooltip.pngBound to Character on Acquire: This item is Bound to Character on Acquire Fathom the Depths, End Chest
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Monsters

Name ( picture • New Monster ) CR Type Race
Bound Water Elemental( view
Bound Water Elemental.jpg
 • edit )
 ♠15Elite Elemental Water Elemental
Deep Water Channeler( view
Deep Water Channeler.jpg
 • edit )
 ♦9Normal ♠14Elite ♥30Epic Hard ♠45Epic Elite Monstrous Humanoid Sahuagin
Deep Water Mage( view
Deep Water Mage.jpg
 • edit )
 ♦9Normal ♠14Elite ♥30Epic Hard ♠45Epic Elite Monstrous Humanoid Sahuagin
Deep Water Scout( view
Deep Water Scout.jpg
 • edit )
 ♦9Normal ♠14Elite ♥30Epic Hard Monstrous Humanoid Sahuagin
Deep Water Soldier( view
Deep Water Soldier.jpg
 • edit )
 ♦9Normal ♠14Elite ♥30Epic Hard Monstrous Humanoid Sahuagin
Drowned( view
Drowned.jpg
 • edit )
 ♦9Normal ♠14Elite ♥30Epic Hard Undead Zombie
Gelatinous Cube( view
Gelatinous Cube.jpg
 • edit )
 ♦18Normal ♥21Hard ♠6/23Elite Ooze Gelatinous Cube
Jri Fal( view
Jri Fal.jpg
 • edit )
 ♠16Elite ♦23Epic Normal ♥32Epic Hard Monstrous Humanoid Sahuagin
Kryzinian Cubespawn( view
Kryzinian Cubespawn.jpg
 • edit )
 ♥14Hard ♠19Elite ♦24Epic Normal ♥33Epic Hard Ooze Gelatinous Cube
Mire Rat( view
Mire Rat.jpg
 • edit )
 ♦8Normal ♠13Elite Animal Rat
Skeleton( view
Skeleton.jpg
 • edit )
 ♠14Elite Undead Skeleton
Slomnuc( view
Slomnuc.jpg
 • edit )
 ♥14Hard ♠17Elite ♦24Epic Normal ♥33Epic Hard Elemental Muckman
Will-o'-Wisp( view
Will-o'-Wisp.jpg
 • edit )
 ♦9Normal ♠14Elite Aberration Will o' Wisp
Wyl Mr( view
Wyl Mr.jpg
 • edit )
 ♥14Hard ♠17Elite ♦23Epic Normal ♥32Epic Hard Monstrous Humanoid Sahuagin