From the publisher: The year 999 is ending... Everyone awaits with horror the end of the millennium and with it the end of the world. And for twelve-year-old Dea, an exciting and adventurous journey into the unknown begins, because the purpose of the journey is clear only to her companion - Goten - a hunter of witches and demons. But what connects Goten with the ominous Abacus, who constantly meets them on the way? And what does Arcanum, a strange secret alliance, hide? Dea tries to find out the truth and finds herself in a magical world - the world of the Seven Seals, where the forces of good and evil are fighting for power over the new millennium.