The 4 Horsemen- Ring Around The Rosie
Sometimes (cough cough all the time cough), Joan has a hard time when children are affected by epidemics. This one bad plague has been taking such a toll on them & breaks down after watching some children put on a brave face better than them.
PS- "Nursery" is a space in the afterlife for young children who aren't ready to move on & eventually shall return to earth to try again at a new life.
(Made up just for the story. But honestly, why judge a child whose brain is still underdeveloped & learning?)