The book finds Eustace (played in The Voyage Of The Dawn Treader by Will Poulter) and classmate Jill Pole sent to Narnia by Aslan on a mission to help the now elderly King Caspian (who we first met in Prince Caspian in the form of Ben Barnes) find his missing son. Set years after Dawn Treader, Eustace and Jill find a much changed, much darker Narnia, and have to somehow restore the missing Prince.
"Like many readers, both young and old, I am a huge fan of C.S. Lewis's beautiful and allegorical world of Narnia," Gordon recently told The Wrap. "These fantasy stories inspire real-world passion among millions of devoted fans around the world. As we prepare to bring the next book to life, we are humbled and excited to contribute to the outstanding legacy of Narnia."
Given that the first three Chronicles Of Narnia films actually ended up with a combined $1.6 billion in earnings, it's perhaps not that surprising that the Lewis company would like to continue the series. Gordon and company's first task will be to find a writer ready to start script duties, so it will likely be several years before Aslan roars again.