<p>On 4 November 1922, a young Egyptian boy working on Howard Carter's archaeological dig in the Valley of the Kings stumbled across a strange piece of rock. On closer inspection it turned out to be a stone step that would lead Carter to a long-lost tomb ? and to treasures beyond his wildest dreams.<br>The tomb belonged to boy pharaoh Tutankhamun and was packed full of priceless artefacts. It had been largely untouched for over 3,000 years and re...