Titled Serpentine, the novel will link where the His Dark Materials series left off as well as linking The Book of Dust series.

To celebrate the 25th anniversary since the first book in His Dark Materials series, Northern Lights was released, Philip Pullman has announced he is releasing a new standalone book about teenage Lyra.

Set to be published on the 15th October, Pullman originally wrote the story over a decade ago and was never intending to publish it, having written it for a charity auction in 2004 at the request of Nicholas Hytner, then director at the National Theatre, during the company’s production of His Dark Materials.

Lyra Silvertongue and her daemon Pantalaimon have left the events of His Dark Materials behind. Here in this snapshot of their forever-changed lives they return to the North to revisit an old friend where we will learn that things are not exactly as they seem.

The newly announced book is also set to feature illustrations from Tom Duxbury.

His Dark Materials has sold over 17 millions of copies around the world and has been published into 40 different languages. Over the years, the story has been transformed into a stage, television and film adaptations.

Serpentine will be published on the 15th October and is available to pre-order now.