J.K. Rowling's first published children's book outside Harry Potter is The Ickabog. It was published in 2020 as a standalone political fairy tale for children.
Rowling originally wrote The Ickabog years earlier while working on the Harry Potter books, intending it as a bedtime story for her own children. She later retrieved the manuscript, revised it, and serialized it free online during the COVID-19 pandemic in 2020. Children were invited to submit illustrations for a related competition.
The story takes place in the fictional kingdom of Cornucopia. Its title creature, the Ickabog, becomes entangled with fear, propaganda, and abuse of power. The book is separate from the wizarding world, so it is not a continuation of Harry Potter or a companion volume like The Tales of Beedle the Bard.