Nefertiti disappeared without a trace 3,000 years ago. Could the long-lost Egyptian queen be just the other side of a wall?
The journey to uncover the discovery of the century begins up Egypt's Nile -- tucked away in a valley outside Luxor.
The heat is relentless: the sun god, Aten, punishes those who dare to enter, with temperatures exceeding 100 degrees Fahrenheit (38 degrees Celsius).