I needed a book to introduce the concept of death to my 3 year old. My main goals: written to his level, clear that death means a permanent separation, and introduces the abstract concept in a non-scary way. I wanted to avoid religion and any after-death rites (burials, cemeteries, etc).
I was apparently asking for a lot. It took a long time to find a book that suited me. I suppose death and how we deal with it is so personal, it makes sense that it would take many false starts to find the one that resonated.
Anyway, Remembering Crystal is nearly perfect for our family needs. It depicts a friendship between Zelda the goose and Crystal the turtle. One day when Zelda comes to play, Crystal is gone and the other geese explain that she was very old and it was her time to die. Zelda can't believe this and, convinced Crystal is hiding, searches the world for her. This becomes a touching tribute to Crystal, as Crystal's memory permeates Zelda's search:
"She searched on the highest mountain...(Crystal would like it up here, Zelda thought)."
I say nearly perfect, because at the very end Zelda accepts Crystal's death but knows she will always carry her memory. The accompanying picture is of Zelda and Crystal hugging, which makes my 3 year old think that Crystal came back so every time we have to explain that it's a picture in Zelda's head and that Crystal is gone for good. I wish the author had put that hug in a thought bubble or something, but other than that glitch the book is exactly what we needed.