Dwiergeth

This beast's bulbous body perches atop four sucker-ended, multi-jointed legs, with a snake-like maw gnashing at either end.

Dwiergeth (CR 13)

Large Aberration (Extraplanar)
Alignment: Chaotic Evil
Initiative: +11
Senses: All-Around Vision, Darkvision 60 feet; Perception +16
Speed: 60 feet, Climb 60 feet
Space: 10 feet

Defense

Armor Class: 28, touch 17, flat-footed 20 (+7 Dex, +1 dodge, +11 natural, -1 size)
Hit Points: 175 (13d8+117)
Saving Throws: Fort +13, Ref +11, Will +15
Damage Reduction: 10/lawful
Immunity: blindness, dazzling, poison, visual effects
Energy Resistance: cold 20, fire 20
Spell Resistance: 24

Offense

Melee: 2 bites +19 (4d6+11/19-20 plus Grab)
Reach: 10 feet
Special Attacks: Fast Swallow, forever gullet, Swallow Whole (8d6 slashing damage, AC 15, 17 hp)
Spell-Like Abilities (CL 13th; Concentration +13):

Constant- Feather Fall
At Will- Gust Of Wind (DC 15)
1/day- Control Winds (DC 18), Wind Wall

Statistics

Str	Dex	Con	Int	Wis	Cha
32 (+11)	25 (+7)	28 (+9)	5 (-3)	24 (+7)	17 (+3)

Base Attack Bonus: +9
CMB +21 (+25 Grapple)
CMD 39 (43 vs. Trip)
Feats: Combat Reflexes, Dodge, Improved Critical (bites), Improved Initiative, Spring Attack, Wind Stance
Skills: Climb +37, Perception +16
Languages: Abyssal

Special Abilities

Forever Gullet (Su)

When a dwiergeth swallows a creature whole (being able to swallow Small creatures or smaller), the act of swallowing shunts the victim through extradimensional orifices within the creature's body and into a seemingly endless maze of tooth-lined entrails that exist outside of reality, similar to the labyrinth created by a maze spell but horribly organic and hungry. If a swallowed creature successfully cuts its way out of a dwiergeth, it must attempt a DC 21 Fortitude save as it crawls out of the hole. If the victim is successful, it escapes the creature, but on a failure, the victim merely crawls from one extradimensional intestine to another and must endure another round of being swallowed whole. A dwiergeth can continue to use swallow whole even after a creature cuts its way out. A creature casting any teleport-based spell or spell-like ability while within 5 feet of a dwiergeth must make a successful DC 21 Will save or the teleportation effect instead sends the target into the dwiergeth's forever gullet. When a dwiergeth is under the effects of dimensional anchor or in an area that prohibits extradimensional travel, it loses the abilities of its forever gullet, but its swallow whole ability functions normally. The save DC is Charisma-based, and it has a +2 racial bonus.

Ecology

Environment: Cold Mountains
Organization: solitary, pair, or pack (3-6)
Treasure: incidental

Dwiergeths hunt the Worldwound's deadly rift valleys, feasting on demon flesh as readily as any other meat, digesting prey in a gnawing process of transdimensional rumination. Sure-footed dwiergeths leap and sprint along vertical surfaces with disturbing ease, and often cling to a cliffside for hours or even days, waiting for prey to approach from either above or below. They have a supernatural mastery over the wind as well, and make use of their spell-like abilities to cause climbers to fall from cliffs or flying creatures to be dashed against rocky walls—it's easier to eat bleeding, broken meat, after all.
A dwiergeth's anatomy is quite unusual. Trembling bristles protruding from the creature's flesh act as eyes, allowing it to see in all directions at once, but the monster's strangest feature lies within. Although dissection of a slain dwiergeth reveals a single coiling digestive tract filled with sharp teeth winding from one of its mouths through its bulbous body to the other mouth, the entrails of a living dwiergeth actually extend into other strange dimensions generated by the monster's Abyssal heritage.