IX Mythos Bestiary CR XP 4,800 CE Huge ooze Init +9; Senses blindsight 120 ft., tremorsense 240 ft.; Perception +11 DEFENSE AC 22, touch 22, flat-footed 13 (+5 deflection, +9 Dex, –2 size) hp 105 (10d8+60); fast healing 10 Fort +9, Ref +12, Will +4 Defensive Abilities all-around vision, DR 10/—; Immune acid, ooze traits; Resist electricity 10; SR 19 OFFENSE Speed 60 ft., climb 40 ft., swim 60 ft Melee bite +15 (4d6+6 plus grab) or club tentacles +15 (2d4+4) or 12 whip tentacles +9 (1d4+2) or ram +14 (6d8+6/x3) Space 15 ft.; Reach 15 ft Special Attacks fast swallow, swallow whole (2d4+4 acid damage, AC 12, 10 hp) Formless Spawn What You See This black ropy construct of thick organic material swiftly changes form, emitting rope-like tendrils and building legs, mouths, and other structures seemingly without pattern It is utterly silent despite the chaos of its ever-moving structure, though you keep expecting some sort of noise like a babbling brook or trembling pool of water S TAT I S T I C S Str 19, Dex 29, Con 22, Int 15, Wis 12, Cha 15 Base Atk +7; CMB +13; CMD 37 (cannot be tripped) Feats Combat Expertise, Combat Reflexes, Power Attack, Weapon Finesse, Weapon Focus (club tentacle), Weapon Focus (bite) Skills Climb +17, Knowledge (religion) +12, Perception +11, Stealth +11, Swim +17 Languages Aklo SQ compression, improved swallow whole, freeze, variable attacks, tentacles ECO LO GY Environment temperate ruin Organization solitary or flood (2–6) Treasure standard SPECIAL ABILITIES Freeze (Ex) A formless spawn can hold itself so still that it appears to be nothing more than a puddle of tar or oil When using this ability, a formless spawn can take 20 on its Stealth check to hide in plain sight as just such a puddle While freezing in this way, a spawn need not drink or eat Improved Swallow Whole (Ex) When a creature cuts its way out of a formless spawn after being swallowed whole, the monster’s fluid body reforms instantly, allowing it to continue to use the swallow whole attack without needing to completely heal all damage Tendrils (Ex) A formless spawn fills an area around it to a twenty-foot radius with a writhing storm of black tendrils formed from its own amorphous body These tendrils grant it a +5 deflection bonus to AC and penalize all other creatures’ CMB checks made in that area by –5 Freedom of movement grants immunity to this CMB penalty, and creatures that are gaseous or incorporeal not suffer the penalty Tentacles (Ex) A formless spawn’s club tentacles always function as primary natural weapons that inflict bludgeoning damage Its whip tentacles always function as secondary natural weapons that inflict slashing damage Ram (Ex) As a full-round action, a formless spawn can transform its whole body into a deadly pointed ram and thrust at a single foe This primary attack inflicts piercing damage Variable Attacks (Ex) When a formless spawn attacks, it must choose which form of attack it wishes to make in that round between a bite, up to three club-like tentacles, a number of whip-like tentacles, or a single powerful ram When it makes attacks of opportunity, it always does so with a club tentacle It cannot attack with multiple attack types as part of a full-attack action—it must choose one of the four attack modes but is free to change those modes each round of combat Deep below the earth live the formless spawn of Tsathoggua They are highly fluid entities of black protoplasm, which can shift between shapes with the rapidity of water They are liquescent in their native habitats, and build channels or gutters of stone that they can flow through with incredible speed Their 337