Vianna and her sisters managed to escape from the captivity of the High King, but the danger that threatens the world of people has not passed. The demon's revenge will be terrible, a new blow must be prevented immediately. Every day Regulus is gaining more and more power. In his hands are Coins of Plenty and Samarium, a metal that makes the enemy’s army immune to magic. An antidote that only witches can produce should help turn the tide of the battle. But the plans collapse: an ancient grimoire, a family book of spells, reveals a mysterious ancient prophecy to the witches. And now Vianna has to go back one and a half millennia to unravel the message. Perhaps this is where the key to saving the future of the whole world lies.