Adaptations of The Chronicles of Narnia released the series on audiobook read by Sir Michael Hordern with original music composed by Michael J. Leslie and performed by Marisa Robles, as well as releasing a version read by the actor Tom Baker. From 1998 to 2003 Focus on the Family Radio Theatre recorded all seven Chronicles of Narnia on CD. Each book had three CDs apart from "The Magician's Nephew" and "The Lion, the Witch and the Wardrobe" which both had two CDs. They were released in association with The C.S. Lewis Company, with an introduction by Douglas Gresham. They used a cast of over one hundred
The Chronicles of Narnia of various children who play central roles in the unfolding history of that world. Except in "The Horse and His Boy", the protagonists are all children from the real world, magically transported to Narnia, where they are called upon by the lion Aslan to protect Narnia from evil and restore the throne to its rightful line. The books span the entire history of Narnia, from its creation in "The Magician's Nephew" to its eventual destruction in "The Last Battle". Inspiration for the series was taken from multiple sources; in addition to adapting numerous traditional Christian themes, Lewis freely borrowed characters