Eldor’s book of spells from the Vintage Super7 Filmation Masters of the Universe toy line. The Book of Living Spells was an ancient grimoire belonging to its guardian, the wizard Eldor on Preternia. Eldor taught his apprentice Gray, who later became He-Ro, how to use the book’s magic. After He-Ro died saving King Grayskull from Hordak, Eldor used the book to cast a great spell that submerged the Three Towers. The book was later stored in He-Ro’s crypt, where it remained for thousands of years, along with his magic staff.