Horace Walpole turns to the letters and argues that: Walpole's numerous letters are often used as a historical resource. In one, dating from 28 January 1754, he coined the word serendipity which he said was derived from a "silly fairy tale" he had read, "The Three Princes of Serendip". The oft-quoted epigram, "This world is a comedy to those that think, a tragedy to those that feel", is from a letter of Walpole's to Anne, Countess of Ossory, on 16 August 1776. The original, fuller version appeared in a letter to Sir Horace Mann on 31 December 1769: "I have often said,
The Unexpected (2018 comic book) Unexpected"s main connection to the events of "Dark Nights: Metal", as she was a paramedic that got injured during the events of the crossover. Besides the series' connection to the events of "Dark Nights: Metal" and the Dark Multiverse, Orlando stated that "The Unexpected" also deals with the post–"Flashpoint" Multiverse, "Crisis on Infinite Earths", "Infinite Crisis", and "Final Crisis", showing how many of these stories are connected to each other. Additionally, one of the book's core themes is discovery. Regarding the characters, Ryan Sook stated that he designed them based on the descriptions he'd received from Orlando and sent them