Bone Whelk

D&D 2024 monster: Bone Whelk. Source: Baldur's Gate: Descent Into Avernus. challenge rating 1/4, creature type Monstrosity, Large size, speed 15 ft., climb 1... Bone whelks are large mollusks that excrete an adhesive to attach skulls, bones, and other detritus to their bodies for protection. Monstrosity Large 15 ft., climb 15 ft.