Plutarch: Concerning The Mysteries Of Isis And Osiris is a book written by G.R.S. Mead that explores the ancient Egyptian religion and mythology of the gods Isis and Osiris. The book is based on the writings of the Greek philosopher and historian Plutarch, who lived in the 1st century AD and was known for his works on religion and ethics.The book delves into the mysteries of the Egyptian religion, including the rituals and practices associated with...