A baby abandoned by a strange creature. On her face: a terrible secret that covers a mask. Under the mask, the one that will become the beautiful and fiery Marlysa. In search of her origins, Marlysa crosses the ocean of brunettes to face "the Other Side" with the sinister reputation. Tatrin, Cilia, Ossian and Stirius accompany her in this dangerous journey that will upset their destiny and create the legend of Marlysa, the woman in the mask. The Thaumaturge finally reveals all the truth about the origins of the beautiful masked warrior.