ah, here's the post I was looking for:
Tomb May Shed Light On 10th Plague
Boston Globe ^ | 11-23-2004 | Charles M. Sennott
Posted on 11/23/2004 6:11:43 PM PST by blam
67 posted on 11/24/2004 9:54:11 AM PST by SunkenCiv
http://www.freerepublic.com/focus/f-news/1287173/posts?page=67#67
The shaft leading to the so called 'Campbell's Tomb'. Named after a 19th century traveller. It was originally a 4th Dynasty tomb. It is situated close to the Sphinx.