Shadowmancer is a fantasy novel by G. P. Taylor, first published privately in 2002. It is a Christian allegory in the form of a fantasy adventure, akin to C. S. Lewis' The Chronicles of Narnia. Taylor wrote the book to counteract what he saw as a rise in atheist propaganda in children's books such as His Dark Materials. It is the first of four books generally referred to as The Shadowmancer Quartet. The book was a number one best seller in the UK and the US.