Septimus Heap, the seventh son of the seveth son, disappears the night he is born, pronounced dead by the midwife. The same night, the boy's father comes across an abnadoned child in the snow-an newborn girl with violet eyes. Who is she and what happened to Septimus? --After learning that she is the Princess, Jenna is whisked from her home and carried toward safety by the Extraordinary Wizard, those she always believed were her father and brother, and a young guard known only as Boy 412--pursued by agents of those who killed her mother ten years earlier.