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Small elemental, neutral evil

Armor Class 14 (natural armor)
Hit Points 45 (6d6 + 24)
Speed 20 ft., burrow 20 ft.

15 (+2) 10 (+0) 18 (+4) 8 (-1) 14 (+2) 6 (-2)

Damage Vulnerabilities thunder
Damage Resistances bludgeoning from nonmagical weapons
Damage Immunities poison
Condition Immunities exhaustion, paralyzed, petrified, poisoned, unconscious
Senses darkvision 60 ft., tremorsense 60 ft., passive Perception 12
Languages Terran
Challenge 3 (700 XP)

Special Traits

  • Earth Glide. The knaerk can burrow through nonmagical, unworked earth and stone. While doing so, the knaerk doesn’t disturb the material it moves through.


  • Multiattack. The knaerk makes two slam attacks.
  • Slam. Melee Weapon Attack: +4 to hit, reach 5 ft.; one target. Hit: 5 (1d6 + 2) bludgeoning damage.
  • Rocks Fall. The knaerk can disrupt an area of nearby stone, causing rocks to fall down in an area. As long as the targeted area is underground, a knaerk can cause rocks to fall down onto all targets in a 10-foot area within 30 feet. Targets in the area that fail a DC 12 Dexterity save take 4d8 points of bludgeoning damage and are restrained; a move action is required to lose the restrained condition. A successful save means the target suffers half the damage and is not restrained.


Every dwarf, young and old, fears a knaerk attack. Their fear of these tunnel-wreckers is enough to induce gibbering madness.

Even though this horror might look like the love child of a chunk of granite, a spider and a hairless goblin, this creature from another plane can scare any tunnel-dwelling creature.

It is known for collapsing tunnels, killing everyone inside and then gliding through the earth without taking a scratch.

Because of this, they are incredibly difficult to kill and are known for destroying whole dwarf clans single-handedly.

For whatever reason, knaerks hate dwarves far more than any other creature that lives underground. Sure, they don’t like duergar, drow, kobolds, orcs and all the rest, but dwarves “break their rubble,” as they say. The feeling among dwarves is considered mutual.

Section 15: Copyright Notice

Book of Beasts: Monsters of the Forgotten Woods (5e). © 2016, Jon Brazer Enterprises.