Merle is only twelve years old, but she has been through a lot. She fled from her native Venice, saving the mysterious Queen Fluiria, flew on the back of a winged lion, descended into the very heart of Hell, fled from there and found herself in Egypt, ruled by a pharaoh who had risen from the dead. Now her path lies in the Iron Eye, the mysterious citadel of the sphinxes. There, in the mirror labyrinths, lie the answers to many questions.