The sequel to this story is now up! It is called Battle of the Heart.
Additionally, backtracking a bit, to avoid any plagiarism… Here are the sites I got the info about mummy unwrapping parties, etc off of.
/article/a-pigment-from-the-depths
/discover/stories/the-corpse-on-the-canvas-the-story-of-mummy-brown-paint
/history-ancient-traditions/disrespect-desecration-victorian-mummy-unwrapping-0010129