Small aberration, unaligned

Armor Class 11
Hit Points 4 (1d6+1)
Speed 10 ft., fly 40 ft.

10 (+0) 12 (+1) 12 (+1) 2 (-4) 20 (+5) 5 (-3)

Skills Perception +9
Damage Immunities lightning
Senses passive Perception 19
Challenge 1/8 (25 XP)


  • Keen Sight. The aothsil has advantage on Wisdom (Perception) checks that rely on sight.


  • Tongue. Melee Weapon Attack: +3 to hit, reach 5 ft., one creature. Hit: 3 (1d6) lightning damage, and the target is grappled (escape DC 12). Creatures grappled in this manner are subject to a stinger attack every round. A creature grappled may also attempt a new Strength (Athletics) or Dexterity (Acrobatics) check (DC 12) at the end of each of its turns, ending the effect on itself with a success.
  • Stinger. Melee Weapon Attack: +3 to hit, reach 5 ft., one creature it has grappled with its tongue. Hit:1 (1d2) piercing damage plus 3 (1d6) lightning damage.


The aothsil is a small creature, possessed of a pod, four tendrils, and a wide, fanlike membrane, called the sail. They hang from the ceiling by four small tendrils, and they cling to most anything and then spread out their sail perpendicular to the walls. The sturdy sail is about eight inches wide and about six inches tall. Boney spines lace the length of the sail at regular intervals, strengthening it. The sail itself is bright blue or green, translucent, and covered in small eyelike dark spots.

Hunters in the Dark. Aothsil cling to the ceilings of dungeons, old corridors, or anywhere that darkness prevails. They hang dormant until some passing creature disturbs the air. They nest in pods of two or three dozen, spread out over a large area, sometimes hundreds of feet apart. They are mindless, reacting on instincts only. When anything comes within 100 feet of the aothsil, it opens the sail very slowly, ensuring that anything watching it does not notice the movement. When the creature moves to within 20 feet of the aothsil, it detaches from the ceiling, gliding through the air via its sail. Its pod opens on the top and a small tongue-like appendage snakes out. When it passes within a few inches of its victim, the tongue strikes the creature, delivering an electrical shock and attaches to the victim. Once secured to a victim, it stabs it with its stinger.

Section 15: Copyright Notice

5th Edition Monsters & Treasure of Airhde, 1st Printing, Copyright 2021, Troll Lord Games; Author Stephen Chenault & Jason Vey

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