Necromantia is an ancient form of divination that involves communicating with the dead. Practiced primarily in ancient Greece, it was believed to provide insights into the future or reveal hidden knowledge. The process often included rituals, sacrifices, and the use of specific locations, such as graves or tombs, to summon spirits. The term is derived from the Greek words "nekros," meaning dead, and "manteia," meaning divination. Homer and other classical writers referenced necromancy in their works, highlighting its significance in ancient cultures. While often associated with dark magic, it was also seen as a way to seek guidance from ancestors.