"Moving Spirit" and "The Defenestration of Ermintrude Inch" were first published in this book and hence presumably were written specifically for it.

"The Defenestration of Ermintrude Inch" rounds off the cycle of stories and explicitly mentions their book publication.

The White Hart is a pub (modelled on the White Horse, New Fetter Lane, just north of Fleet Street, once the weekly rendezvous of science fiction fans in London till the mid 50s, when they moved to the Globe pub in Hatton Garden)[1] where a character named Harry Purvis tells a series of tall tales.

One additional story from the White Hart 'universe', "Let There Be Light", is reprinted in Tales of Ten Worlds.

Clarke and Stephen Baxter collaborated on one final White Hart story, "Time, Gentlemen, Please" for a 2007 limited edition from PS Publishing, issued for the book's 50th anniversary.