The friendship between J.R.R. Tolkien and C.S. Lewis lasted over 40 years and was for each the most important creative collaboration in their lives. This work explores the origins of the mythological worlds which both writers placed at the centre of their fiction.
Colin Duriez has also written Tolkien and the Lord of the Rings: A Guide to Middle-Earth (Azure, 2001), The C.S. Lewis Encyclopedia. (described by Walter Hoopwe, literary advisor to the C.S. Lewis estate, as one of the most useful books I know, I look for excuses to read it!) (Azure 2002) and the Inklings Handbook (with David Porter).