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Hollow Serpent

An unseen breeze stirs the desiccated scales of this immense snakeskin, causing the shedding’s frayed, dried edges to flutter with a semblance of life. Pinpoints of unholy green light flare behind the intact eye lenses as the head starts to rise. The same glow behind those long-dead eyes illuminates a gaping mouth and bony fangs. Then a terrifying, painful hiss assaults your mind as the serpent slithers forward with a silent, unearthly grace.

Hollow Serpent CR 16

Source Pathfinder #42: Sanctum of the Serpent God pg. 86, Bestiary 3 pg. 149
XP 76,800
NE Large undead (reptilian)
Init +9; Senses darkvision 60 ft., lifesense; Perception +17
Aura desiccation (30 ft., 1d4 Cha damage, Fort DC 26 negates)


AC 31, touch 19, flat-footed 21 (+9 Dex, +1 dodge, +12 natural, -1 size)
hp 230 (20d8+140); fast healing 10
Fort +14, Ref +17, Will +18
Defensive Abilities channel resistance +4; DR 10/magic and silver; Immune undead traits; SR 27


Speed 50 ft., climb 50 ft.
Melee bite +23 (4d10+10 plus grab)
Space 10 ft., Reach 10 ft.
Special Attacks channel negative energy (8d6, DC 24, 9/day), constrict (4d10+10 plus energy drain), dissonant hiss, energy drain (1 level, DC 26), life-stealing coils
Spell-Like Abilities (CL 16th; concentration +22)
Constant - deathwatch, freedom of movement
1/day - horrid wilting (DC 24), waves of exhaustion


Str 25, Dex 29, Con —, Int 6, Wis 19, Cha 22
Base Atk +15; CMB +25 (+29 grapple); CMD 43 (can't be tripped)
Feats Agile Maneuvers, Channel Smite, Dodge, Great Fortitude, Iron Will, Lightning Reflexes, Lunge, Toughness, Vital Strike, Weapon Finesse
Skills Climb +28, Escape Artist +19, Perception +17, Stealth +18
Languages Aklo; telepathy 100 ft.


Environment underground
Organization solitary, pair, or nest (3-8)
Treasure double standard

Special Abilities

Channel Negative Energy (Su) As a standard action, a hollow serpent can channel negative energy in a 30-foot burst just like a 16th-level cleric of an evil deity. This ability requires no divine focus. The save DC is Charisma-based.

Desiccation Aura (Su) A cloud of negatively charged dust fills the air in a 30-foot radius around the body of a hollow serpent, causing living creatures within the area to make a DC 26 Fortitude save or take 1d6 points of Charisma damage. Whether or not the save is successful, a creature cannot be affected again by the same hollow serpent’s desiccation aura for 24 hours. The save DC is Constitution-based.

Life-Draining Coils (Su) A hollow serpent seethes with negative energy capable of draining the life force of creatures trapped within its coils. While holding such victims, the hollow serpent’s constrict ability bestows one negative level per round. The hollow serpent also gains 5 temporary hit points for each negative level it bestows.

Lifesense (Su) A hollow serpent notices and locates living creatures within 60 feet, just as if it possessed the blindsight ability.


Among the many manifestations of serpentfolk faith, the hollow serpent represents one of the most horrific harbingers of doom. Serpentfolk legend suggests Ydersius created the first hollow serpents as protectors and guardians for their underground enclaves. But serpentfolk priests soon learned how to make more, worshiping and cultivating the skin sheddings of monstrously giant snakes with rituals to turn them into engines of destruction. Capable of laying waste to entire regions, the hollow serpents used their life-draining coils to slay the enemies of the serpentfolk, proving particularly effective against the Azlanti empire in the early years of the serpentfolk’s age-long struggle against humanity. Eventually, however, the Azlanti learned to combat these skins with positive energy and fire. With the retreat of the mighty snake-god and his people into the shadows of the Darklands, serpentfolk priests have hoarded the most potent of these defenders as guardians of the hibernation chambers of the serpentfolk elite.

A typical hollow serpent measures a little over 15 feet long and weighs 500 pounds. A lesser hollow serpent is 7 feet long and weighs just 90 pounds.

Creating a Hollow Serpent

While the first hollow serpents were supposedly created from scales shed by beasts favored by the Serpent King himself, and those unholy snakeskins can even shed their own lesser offspring over time, serpentfolk priests can also create their own lesser hollow serpents. A lesser hollow serpent created by a serpentfolk priest requires a more involved process. The priest must fill a clay pot with dirt taken from a serpentfolk grave, the skin and bones of a giant constrictor snake, an onyx gem worth at least 250 gp, and a sprinkling of unholy water. Thereafter, a 15th-level caster must cast create undead on the skin stuffed with the other assembled reagents.

Creatures in "Hollow Serpent" Category

Hollow Serpent16
Lesser Hollow Serpent6