A Gelatinous Cube is a fictional creature commonly found in fantasy role-playing games, particularly in Dungeons & Dragons. It is a large, transparent, cube-shaped mass made of a gelatinous substance that can engulf and digest organic matter. These creatures are often encountered in dungeons and caves, where they move slowly and silently, absorbing anything in their path. Gelatinous cubes are known for their unique ability to dissolve flesh and bone, leaving behind only equipment and items. They are typically mindless, driven by instinct to consume, and can pose a significant threat to adventurers who underestimate their size and danger.