Tomb may shed light on 10th plague By Charles M. Sennott, Globe Staff | November 23, 2004 LUXOR, Egypt — Out of the blinding light of a fall morning here in the Valley of the Kings, American archeologist Kent Weeks led the way down a narrow, stone passageway and into the entrance of a tomb. Weeks peered his flashlight into the enveloping darkness of ‘‘the hidden tomb,’’ as he calls it, and pressed on through the damp, winding passages toward what may be his archeological team’s most significant find after years of methodical digging, scraping, and brushing. At the end...