When a renowned historian is found dead in a cave in the Sahara, his former student Ryan Harper vows to find out what happened. Rumour suggests he'd uncovered a priceless religious text, obsessively hidden for centuries by a network of holy men. Meanwhile, on Cornwall's remote western moorlands disturbing rituals are taking place-- rituals that appear to have Egyptian connections. Working the case, DI Karen Trevithick is caught up in a dangerous mystery that will threaten the person she loves most. With the help of filmmaker Helen Fassbinder, Ryan finds himself in a race against time to decipher the ancient text. Pursued across Egypt by those who would use its secrets to devastating effect, Ryan draws ever closer to an unspeakable truth. A truth that will expose the most shocking deceit the world has ever known.