Bore Worm Monarch

Bright red and coated in an opaque yellow slime, this monstrous worm has a menacing pair of barbed mandibles.

Bore Worm Monarch CR 7

XP 3,200
N Large vermin
Init –2; Senses tremorsense 60 ft.; Perception +0


AC 19, touch 7, flat-footed 19 (–2 Dex, +12 natural, –1 size)
hp 78 (12d8+24)
Fort +10, Ref +2, Will +4
DR 10/piercing; Immune acid, mind-affecting effects
Weaknesses vulnerable to water


Speed 20 ft., burrow 40 ft.
Melee bite +13 (2d6+7 plus 2d6 acid and painful bite)
Space 10 ft.; Reach 10 ft.
Special Attacks painful bite (DC 18)


Str 20, Dex 7, Con 15, Int —, Wis 10, Cha 2
Base Atk +9; CMB +15; CMD 23 (can’t be tripped)
SQ compression, corrosive wake


Corrosive Wake (Ex)

When a bore worm monarch burrows, it can move through solid material, including stone and metal, as easily as a fish swims through water. It leaves behind a 5-foot-diameter, smooth-sided tunnel coated in acid that deals 1d3 points of acid damage to creatures coming into contact with its surface. This acid lasts a number of rounds equal to the hardness of material it burrowed through.


Environment any underground
Organization solitary, pair, or tremor (1 plus 1d6 bore worm swarms)
Treasure none

Bore worms are a vile breed of subterranean burrowing worm, attacking prey both in their home and, more rarely, on the planet’s surface. Three major variants of the worms exist, each representing a different stage in the creature’s long life cycle—the swarm, monarch, and empress stages.

Section 15: Copyright Notice

Pathfinder Adventure Path #117: Assault on Longshadow © 2017, Paizo Inc.; Authors: Benjamin Bruck and Thurston Hillman, with Liz Courts, Paris Crenshaw, and Jason Keeley.

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