The Kane Chronicles The Serpent's Shadow

My brother Carter and I would like to apologize straight away for the inconvenience. The earthquakes, rebellions, riots, floods and, of course, the giant snake of Chaos, Apophis, who swallowed the sun. I'm afraid most of that was our fault. Now we must do what no magician has ever done; defeat Apophis. Our only hope is an ancient spell- but the magic has been lost for millennia. We either find the serpent's shadow or face death in the depths of the Underworld. It all ends here. Let's go.