Today he chose a book called 'Sniff'.
In the book, Sniff the dog is sad because Granny isn't sitting in her chair anymore and the rest of the family try to cheer him up by telling him that they love him. The point being, of course, that dear old Granny has passed on.
I read the book before I realised the subject matter.
LG: Why Sniff was sad?
MF: Because Granny isn't there.
LG: Where's Granny then?
MF: I don't know.
LG: I think Granny died.
LG: I don't know why.
MF: Do you think she got eaten by a crocodile or something?