Called Serpentine, the short book will introduce readers to a teenage Lyra and is set after the events of His Dark Materials, but before those of The Secret Commonwealth, which was published last year and featured Lyra as an adult.
The new standalone short story was written in 2004 for a charity auction at the request of Sir Nicholas Hytner, the then-director of the National theatre, during the stage production of His Dark Materials.
Pullman said in a statement: “When I wrote Serpentine, I had no idea that I was going on to write another trilogy, showing Lyra as an adult, but she and her world wouldn’t leave me alone.
“When it comes to human affairs, a billion invisible filaments connect us to our own pasts, as well as to the most remote things we can imagine; and I hope that, above all, these books are about being alive and being human.”
The announcement of Serpentine coincides with the 25th anniversary of the publication of Northern Lights, which was the first volume of the His Dark Materials trilogy.
The new novella will see a teenage Lyra return to the town of Trollesund, the setting of her first encounter with Iorek Byrnison and Lee Scoresby in Northern Lights.
Serpentine will be published by Penguin Random House Children’s on October 15 in hardback and ebook edition, with illustrations by Tom Duxbury, alongside an audiobook read by Olivia Colman.
Pullman told PA that he hopes Serpentine will be the last book in Lyra’s story, saying: “I don’t want to go on and on and on with it. I’m telling this part of the story because I think it needed to be told.
“I needed to tell it, it’s a story of how she reconciles her original vision of everything being connected, everything being alive, her vision as a child with the rationalism, with the scepticism, even cynicism that she’s unwittingly developed as a student, as a teenager, how she reconciles these two visions of the world. I hope she will but I can’t say how or indeed whether she will. It might end up very sadly, I don’t know.”
Additional reporting by PA.