"Call of Cthulhu" is a short story written by author H.P. Lovecraft in 1928. It introduces readers to a cosmic horror mythos, where ancient, powerful beings, known as the Great Old Ones, exist beyond human comprehension. The story is told through the fragmented accounts of various characters who encounter the mysterious cult of Cthulhu, a monstrous entity that lies dormant beneath the sea. The narrative explores themes of madness, forbidden knowledge, and the insignificance of humanity in the vast universe. It has inspired a wide range of adaptations, including tabletop games, films, and literature, solidifying its place in the genre of horror fiction.