I, Lucifer is a 2002 novel by Glen Duncan, told from the point of view of the eponymous fallen angel, who has taken on a human body formerly belonging to a struggling writer.

This story takes place in London and Lucifer lives in the body of Declan Gunn (an anagram of "Glen Duncan", the author's name), formerly a struggling writer who is suicidal.

Raphael tells him the world is going to end so there’s no choice but to gain redemption from rebelling against God and be accepted back into heaven.

Glen Duncan was staying in Clerkenwell with Stephen Coates of The Real Tuesday Weld while writing the novel, and so "the book and record grew up together".

The first track on the album is named "Bodies in Flight", which is similar to the title of a novel written by Declan Gunn, the author in the book.