Seals and characters for summoning the greater Lucifer, Beelzebub, and Astaroth. In order of effectiveness, the symbols must be drawn in either: the sorcerer’s blood, the blood of a sea turtle, or engraved on emerald or ruby. From Grimorium Verum (16th Century) and The Grand Grimore (). Source: “The book of black and of pacts”, A.E. Waite, Embassy of the Free Mind

📖 Purchase Book (affiliate link, free digital version linked above)