eh i don't remeber the exasct points but you should go where there is a things that seems a rock table and you found them.Explore where??? I already moved through this whole ass pyramid more than 2 times now and I can't seem to find any other spirit. also thanks for the puzzle tip
Don't know what else tos ay i have explored all floors and just found them sorry if i can't help much.
From the entrance you can fall in the holes, take stairs a go down trought a hole with lianes like a staircase, then explore all the ways and you should find them