Which Roald Dahl children's book was published after his death?

The Minpins was the Roald Dahl children’s book published after his death. It appeared in 1991, following Dahl’s death in November 1990, and is generally described as his final work of literature.

The story follows Little Billy, a boy who enters the mysterious Forest of Sin despite his mother’s warnings. There he encounters the Minpins, tiny people threatened by a monstrous creature called the Bloodbottler. As in many Dahl stories, a child’s fear, ingenuity, and independence drive the adventure.

The book was originally illustrated by Patrick Benson and published by Jonathan Cape. A later edition, published in 2017 as Billy and the Minpins, featured new illustrations by Quentin Blake, Dahl’s best-known artistic collaborator. That retitled edition can sometimes cause confusion about whether it is a different story.

The Witches, Matilda, and The BFG were all published while Dahl was alive. The Minpins therefore stands apart in his bibliography both for its posthumous publication and for being his final completed children’s story.