Besides Mainly in Moonlight, Gray has published two other collections of his short stories, The Edge of Evening and A Windfrom Nowhere. Both books feature tales of enchantment similar to those in Mainly in Moonlight Two of Gray's longer novels feature characters who also appear in stories in Mainly in Moonlight.

Over the Hills to Fabylon concerns characters from "A Letter to My Love."

Fabylon is a kingdom that is able to relocate whenever the king feels that it is in danger. Unfortunately, the present king of Fabylon is very nervous and frequently feels that Fabylon is endangered. Conrad, the Crown Prince briefly introduced in "A Letter to My Love," is an important and memorable character in the novel. Grimbold's Other World tells more about Muffler, whom we meet in "A Message in a Bottle."

Grimbold, the title character in the novel, is a wise and...