Its slime-drenched length coiled upon itself in a shuddering mountain, this huge worm's tentacled head rises like a snake's.
Neothelid CR 15
CE Gargantuan aberration
Init +2; Senses blindsight 100 ft., trace teleport 60 ft.; Perception +25
AC 30, touch 4, flat-footed 30 (–2 Dex, +26 natural, –4 size)
hp 230 (20d8+140)
Fort +15, Ref +4, Will +16
DR 10/cold iron; SR 26
Speed 30 ft., fly 60 ft. (good)
Melee 4 tongues +21 (3d6+10/19–20 plus grab)
Space 20 ft.; Reach 20 ft.
Spell-Like Abilities (CL 20th)
3/day—quickened suggestion (DC 18)
Str 30, Dex 7, Con 24, Int 16, Wis 15, Cha 21
Base Atk +15; CMB +29 (+33 grapple); CMD 37 (can't be tripped)
Languages Aklo, Terran, Undercommon; telepathy 100 ft.
Environment any underground
Organization solitary, pair, or cult (3–5 plus 4–12 charmed slaves of various races)
Mind Thrust (Su) As a standard action up to three times a day, a neothelid can deliver a massive blast of mental energy at any one target within 60 feet, inflicting 15d10 points of damage. A successful DC 25 Will save negates the effect. This effect can only harm creatures with Intelligence scores. This is a mind-affecting effect. The save DC is Charisma-based.
Psychic Crush (Su) As a standard action up to three times a day, a neothelid can attempt to crush the mind of a single creature within 60 feet. The target must make a DC 25 Will save or collapse, becoming unconscious and dying at –1 hit points. If the target succeeds on the save, it takes 6d6 points of damage and is sickened for 1 round. This is a mind-affecting effect. The save DC is Charisma-based.
Trace Teleport (Ex) A neothelid telepathically and reflexively learns the mental coordinates of the destination, of all creatures that teleport within 60 feet of it, gaining an awareness of the location equivalent to "seen casually." This knowledge fades and is lost after 1 minute. This power does not grant any environmental information about the conditions of the destination.
Dwelling only in the deepest reaches of the underworld, the immense neothelids once ruled empires in the depths, yet their numbers have been vastly reduced as other races have proven swifter to breed and adapt. Today, the neothelid is a legend, the subject of tales of horror among those few to have experienced the creature's wrath in person and lived to tell about it.
Neothelids are served by all manner of strange worm-like creatures, minions they use to observe and wage war against their enemies. The neothelids themselves were spawned by even more horrific entities, ageless horrors from strange dimensions beyond the edge of known reality—the neothelids see themselves as the chosen agents of these malevolent forces, working to ready the world for their return.