Gelatinous Cube

Gelatinous Cube

Harper Field Dossier
Combat reference
Type	Ooze — a ten-foot cube of near-transparent slime that scours the deep tunnels clean
Vulnerabilities	None special; it is simply not very hardy
Resistances	None known
Immunities	Sees nothing and cannot be blinded; unmoved by fear or charm (a mindless ooze)
Condition Immunities	Blinded, charmed, deafened, exhaustion, frightened, prone (lore of oozes)
Strong Saves	None — slow and witless
Senses	Blindsight; it feels the warmth and tremor of living things, not sees them
Movement	Creeps slowly along passages, filling them wall to wall
Notable Abilities	Engulfs a creature that touches it or that it shuffles into, holding and slowly dissolving it; so clear it is all but invisible until it moves — the unwary walk straight in
Provenance
Knowledge	One encounter, in the dwarven barracks of Garmok's Mine
First Encountered	Session 44
Filed by	The company's own account

The Harpers' Read

Barely a monster — a hungry transparent box that drifts the tunnels eating whatever it bumps. The danger is entirely that you do not see it: it is near-invisible at rest, drawn to warm sleeping bodies, and anyone who blunders into it is engulfed before they know it is there. Keep a watch that is actually watching, strike it from range, and it falls quickly. It is tough only in that it is dim and persistent, not in any real resilience.

Encounters of Record

Session 44 — The dwarven barracks

After clearing the mine of devils, a dragon, and cultists, the company bedded down to rest. Alexios stood watch but nodded off, and a cube oozed in toward the warm bodies and tried to engulf him. He twisted clear and roused the others, who finished it without much trouble before finally taking their long rest.

Harvest Profile

CR 2 — Uncommon ceiling. Rules: Monster Harvesting. Search all components by effect: Find Components. Bring buckets, not knives.

Component	Tool	Rarity	Effect	Primary for	Contributor to
Gelatinous Cube Core-Acid (signature)	Alchemist's	Uncommon	The digesting heart of the ooze — patient acid that eats anything but glass Damage: Acid	Potion, Bomb	Poison
Gelatinous Cube Clear Membrane	Alchemist's	Uncommon	The outer film so clear the eye slides off it Skill: Stealth • Utility: Disguise	Wondrous	—
Gelatinous Cube Engulfing Mass	Alchemist's	Uncommon	Ooze that grips and holds what it swallows Afflict: Restrain	Bomb	Wondrous
Gelatinous Cube Preserving Jelly	Herbalism	Uncommon	Jelly that keeps what it coats from rot Ward: Disease	Potion	Wondrous
Gelatinous Cube Sense-Nodes	Navigator's	Uncommon	The warmth-and-tremor nodes it hunts by Sense: Blindsight	Wondrous	—
Gelatinous Cube Slime Stock	Alchemist's	Common	Structure only	—	Potion, Bomb
Gelatinous Cube Membrane Sheets	Leatherworker's	Common	Structure only	—	Wondrous
Gelatinous Cube Acid Residue	Alchemist's	Common	Structure only	—	Bomb
Gelatinous Cube Ooze-Salts	Alchemist's	Common	Structure only	—	Potion
Gelatinous Cube Polished Bones	Woodcarver's	Common	Structure only'(scoured mirror-clean)	—	Wand, Weapon
Gelatinous Cube Suspended Trove	Scavenge	Common	Structure only'(the undigested gear drifting inside — scavenge)	—	—

See also

• Bestiary — the company's field bestiary
• Monster Harvesting · Harvested Materials · Find Components