EDIT: it was not Egyptian mummies but Catholic relics and murals, denoting the destruction of Edom, Rome, as commanded by Chabad. The boy is then left with a mechanical robot (AI) as a talisman from his father that he had yet to finish.
See video here showing his father die:
https://m.youtube.com/watch?v=8VzQ-XM_Cqs&pp=ygUUSHVnbyBib3lzIGZhdGVyIGRpZXM%3DPhoto in this post is the boy and girl dropping the box and all the papers fly out.