I could not help but wonder if perhaps Barbara Berger might have thought of a poem by Carl Sandburg, "Child Moon," as inspiration to author this bedtime story book for kids. It was my first thought, but story similarities end there.
As you can see from the glowing window view on the book cover, Grandfather Twilight dwells in a sheltered spot in the forest among the trees and the wildlife. Nestled snug in a wooden chest, his never-ending strand of pearls he has stored.
At the end of each day, Grandfather Twilight takes a pearl from the strand and with it carefully cupped in his hand he walks through the forest, following a pathway to a cliff above the sea. Along the way, the pearl grows larger and larger, as does the bright glow emanating from it. Once reaching his destination, Grandfather Twilight releases his pearl unto the silent nocturnal sky, high above the sea.
By way of the pearl moon light, Grandfather Twilight finds his way home and climbs snugly into bed with a wondrous whispering of “Good night.”