Ketesthius

AC 28, touch 13, flat-footed 24 (+7 Dex, +15 natural, –4 size)

hp 200 (16d10+112); regeneration 10 (fire or acid)

Fort +17, Ref +17, Will +10

Speed 20 ft., swim 40 ft.

Melee bite +22 (4d8+10/19–20 plus grab), 2 claws +22 (2d6+10/19–20)

Space 20 ft, ; Reach 15 ft. (20 ft. with bite)

Special Attacks bigger inside, fast swallow, grab (Gargantuan), swallow whole (see text)

Spell-Like Abilities (CL 13; concentration +13)

CMB +30 (+34 grapple) CMD 47

Str 30,, Dex 25,, Con 24,, Int 5,, Wis 16,, Cha 11

Base Atk +16

Feats Critical Focus , Improved Critical (bite), Improved Critical (claws) , Improved Initiative , Iron Will , Lunge , Power Attack , Staggering Critical

Skills Perception +14, Swim +29

Languages Common (can’t speak)

SQ amphibious

Bigger Inside (Su) A ketesthius’s stomach is an extradimensional space, much larger on the inside than its physical size would allow. A ketesthius can swallow any Gargantuan or smaller creature, and its cavernous stomach is an entirely new location, its size varying wildly from ketesthius to ketesthius. Creatures swallowed by the ketesthius are not considered grappled, nor do they take damage each round, and damage to the walls of the stomach do not harm the ketesthius or allow the creatures to escape. Creatures trapped inside can generally escape only via teleportation magic that crosses planes or if the ketesthius is defeated or nauseated from outside. As a result of its unusual anatomy and huge appetite, a ketesthius often has other monsters living inside its stomach, which in turn feed on things the ketesthius swallows. A ketesthius usually has from one to four monsters of CR 8–9 in its gullet. Sea creatures like dire sharks, dire crocodiles, giant octopus, or giant squid are most common, but less frequently giants or other land-dwelling creatures live in its gut as well. Ketesthiuses are even known to swallow each other, though only on rare occasions.