        At the very end of the book, there were two facing drawings.  One of them had a big creature like the one he’d seen on the beach, looking up at what was unmistakably a sun.  On the other side, a darker night sky, complete with moon, had a darker rendition of a similar creature.  If he hadn’t been watching her carefully, he might have missed the way she unconsciously bowed her head when she pointed to the day-alien.