Maggot Hound
This large canine beast is ravaged by disease, its skin covered in sores, its hair matted. A large mask of terrible wriggling worms squirm upon the spot where its face should be.

MAGGOT HOUND (CR 3; XP 800)
CE Large aberration
Init +0; Senses darkvision 60 ft.; Perception +7
DEFENSE
AC 15, touch 9, flat-footed 15
(+6 natural, -1 size)
hp 34 (4d8+16)
Fort +5, Ref +1, Will +4
Immune disease
OFFENSE
Speed 30 ft., burrow 20 ft.
Melee multiple bites +7 (2d6+4 plus grab), 2 claws +6 (1d6+4)
Space 10 ft.; Reach 5 ft.
Special Attacks flesh burrow (4d6+8)
STATISTICS
Str 19, Dex 10, Con 18, Int 2, Wis 10, Cha 6
Base Atk +3; CMB +8 (+12 grapple); CMD 18 (22 vs. trip)
Feats DiehardB, Endurance, Weapon Focus (multiple bites)
Skills Perception +7
ECOLOGY
Environment underground
Organization solitary or pack (5-10)
Treasure none
SPECIAL ABILITIES
Flesh Burrow (Ex) If the maggot hound begins its turn with an opponent grappled, it can attempt a new combat maneuver check (as though attempting to pin the opponent). If it succeeds, the opponent takes 4d6+8 points of damage as the maggots burrow into its flesh.
Multiple Bites (Ex) The many squirming heads of the maggot hound act as a single unit for the purpose of attacks, however the damage is dealt as if the creature were one size larger.

While underground, a miner’s mind clings to the familiar memories of the lighted world; green grass, soft beds, the glowing sun, family, friends. Even the creatures of the sunlit surface become a thing of nostalgia. Perhaps that is why the incongruous sight of the maggot hound, a foul aberration of the subterranean depths, bewilders surface dwellers so much. Even wolves are creatures of the forests and the brightly lit snows. These creatures seek no warm fires or humanoid servitude, only to silently kill, and feed on victims until only glistening bones remain.

Maggot hounds are as unwholesome as their names, with mere patches of fur on their sore-ridden bodies, their faces past the ears bearing no features whatsoever, just a mass of wriggling worms. No maggots these, the worms that the ‘hound uses to devastating effect in its attacks bond with it in a symbiotic relationship, worm to canine. How this relationship came to be is hard to fathom, and rather unsettling if considered. The worms that compose its sensory organs and feeding apparatus cannot, thankfully, infest other types of creatures, and do not live long outside the larger body, being quickly reabsorbed. The social habits of the beast give some clue, as only individuals or packs are encountered, and nothing in between.

On Porphyra
Maggot hounds are prevalent in Creeper’s Rift, due to an accidental bonding of alien aberrant worms and a pack of huskies trained to pull mining cars. Due to their new mobility, the new worm/dogs are spreading through the Underdeep, and are now troubling the dwarven miners of Nor-Du-Mag.