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|Size/Type:||Huge Aberration (Aquatic)|
|Hit Dice:||8d8+40 (76 hp)|
|Speed:||10 ft. (2 squares), swim 60 ft.|
|Armor Class:||16 (–2 size, +1 Dex, +7 natural), touch 9, flat-footed 15|
|Attack:||Tentacle +12 melee (1d6+8 plus slime)|
|Full Attack:||4 tentacles +12 melee (1d6+8 plus slime)|
|Space/Reach:||15 ft./10 ft.|
|Special Attacks:||Enslave, psionics, slime|
|Special Qualities:||Aquatic subtype, darkvision 60 ft., mucus cloud|
|Saves:||Fort +7, Ref +3, Will +11|
|Abilities:||Str 26, Dex 12, Con 20, Int 15, Wis 17, Cha 17|
|Skills:||Concentration +16, Knowledge (any one) +13, Listen +16, Spot +16, Swim +8|
|Feats:||Alertness, Combat Casting, Iron Will|
|Organization:||Solitary, brood (2–4),or slaver brood (1d3+1 plus 7–12 skum)|
|Alignment:||Usually lawful evil|
|Advancement:||9–16 HD (Huge); 17–24 HD (Gargantuan)|
The aboleth is a revolting fishlike amphibian found primarily in subterranean lakes and rivers. An aboleth has a pink belly. Four pulsating blueblack orifices line the bottom of its body and secrete gray slime that smells like rancid grease. It uses its tail for propulsion in the water and drags itself along with its tentacles on land. An aboleth weighs about 6,500 pounds.
Aboleths speak their own language, as well as Undercommon and Aquan.
An aboleth attacks by flailing with its long, slimy tentacles, though it prefers to fight from a distance using its illusion powers.
Enslave (Su): Three times per day, an aboleth can attempt to enslave any one living creature within 30 feet. The target must succeed on a DC 17 Will save or be affected as though by a dominate person spell (caster level 16th). An enslaved creature obeys the aboleth’s telepathic commands until freed by remove curse, and can attempt a new Will save every 24 hours to break free. The control is also broken if the aboleth dies or travels more than 1 mile from its slave. The save DC is Charisma-based.
Psionics (Sp): At will—hypnotic pattern (DC 15), illusory wall (DC 17), mirage arcana (DC 18), persistent image (DC 18), programmed image (DC 19), project image (DC 20), veil (DC 19). Effective caster level 16th. The save DCs are Charisma-based.
Slime (Ex): A blow from an aboleth’s tentacle can cause a terrible affliction. A creature hit by a tentacle must succeed on a DC 19 Fortitude save or begin to transform over the next 1d4+1 minutes, the skin gradually becoming a clear, slimy membrane. An afflicted creature must remain moistened with cool, fresh water or take 1d12 points of damage every 10 minutes. The slime reduces the creature’s natural armor bonus by 1 (but never to less than 0). The save DC is Constitution-based.
Mucus Cloud (Ex): An aboleth underwater surrounds itself with a viscous cloud of mucus roughly 1 foot thick. Any creature coming into contact with and inhaling this substance must succeed on a DC 19 Fortitude save or lose the ability to breathe air for the next 3 hours. An affected creature suffocates in 2d6 minutes if removed from the water. Renewed contact with the mucus cloud and failing another Fortitude save continues the effect for another 3 hours. The save DC is Constitution-based.
Skills: An aboleth has a +8 racial bonus on any Swim check to perform some special action or avoid a hazard. It can always choose to take 10 on a Swim check, even if distracted or endangered. It can use the run action while swimming, provided it swims in a straight line.