Ragnar found this stone in the great, but sacked by barbarians, Rome, in an underground crypt where a Christian saint was buried. On the chest of the dead saint was a cross with four precious stones. Four German warriors divided them among themselves and went in different directions. Ragnar, who went north and joined the Vikings, was incredibly lucky - several times in the moment of certain death he managed to escape!.. Anya Uglova, to whom the dying archaeologist gave the silver amulet found in an ancient burial with the order to cherish it like the apple of his eye, at first she simply forgot about her. However, when strange things began to happen to her—attacks and robbery attempts—Anya remembered the amulet. Her friend Agniya Ivolgina, who, by the will of fate, became the keeper of three of the four stones lost in antiquity, having taken the archaeologist’s find in her hands, she immediately realized that life had again brought her together with the sacred secret of the Apostle Peter...