A reader just asked me if I could recomend some secular children’s books regarding mortality and death.
Here is a nice list of picture books on Amazon.com. The list author says: “The books on this list deal with the issue of death in a secular manner and do not introduce the concept of an afterlife to their young audience.”
Or for an older child, from Goodreads:
Michael Rosen’s Sad Book (Boston Globe-Horn Book Honors)
by Michael Rosen, Quentin Blake (Illustrator)