The "Deep Ones" are fictional creatures from the works of author H.P. Lovecraft. They are described as amphibious humanoids that dwell in the ocean, particularly in the fictional town of Innsmouth. Known for their fish-like features, such as webbed hands and gills, they are often associated with dark rituals and ancient deities. In Lovecraft's stories, the Deep Ones worship the sea god Dagon and are known for their ability to interbreed with humans. This results in hybrid offspring, which can lead to the gradual transformation of humans into Deep Ones. Their presence symbolizes the fear of the unknown and the consequences of forbidden knowledge.