Apophis, the chaos snake, threatens to sink the whole world into eternal darkness. Carter and Sadie Kane are facing an impossible task: destroy it once and for all. On your own, because the wizards of the house of life are engaged in a terrible intestine war and none of the Gods can help them fight against chaos forces. The only hope is an ancient spell that could transform the same shadow as the snake into a powerful weapon against him, but the formula has been lost for over a millennium. To be able to recover it, the Kane brothers will be forced to trust the killer ghost of a powerful magician, which could lead them to the shadow of the snake, or death, in the depths of the underworld ... Ready to read: for 12 years.