Bone Whelk

Large monstrosity, Unaligned

Armor Class

12 (natural armor)

Hit Points

27 (5d10)

Speed

walk 15 ft., climb 15 ft.

Senses

darkvision 60 ft.

Challenge

1/4

Adhesive

The bone whelk can cause Medium or smaller objects to adhere to it. A Medium or smaller creature that touches the bone whelk is grappled by it (escape DC 10).

Death Scream

When the bone whelk dies, it emits a blood-curdling shriek than can be heard out to a range of 120 feet. This shriek causes nonmagical, organic material within 10 feet of the bone whelk to rot. Each creature within 10 feet of the bone whelk when it dies takes 9 (2d8) necrotic damage.

Spider Climb

The bone whelk can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.

Actions

Bite

Melee Weapon Attack: +2 to hit, reach 5 ft., one target. Hit: 4 (1d8) piercing damage.