They operate on the same theory that suggests mummifying yourself in bubble wrap and jumping out a third-storey window should be a fun way to pass an afternoon.
They are most famous for mummifying their dead -- particularly children and babies -- and to date, more than 300 of these preserved humans have been found by archaeologists.
An analytical chemistry analysis of the materials used to mummify the knees suggests that they belonged to someone at the very highest strata of ancient society.
