加长版
As well as a collected paperback edition, "Heart of Empire" is available as a CD-ROM containing scans of the pencil roughs, black-and-white inks, final colour pages and high resolution versions and a great deal of annotation and supplementary material from Bryan. It also includes scans of the whole of "The Adventures of Luther Arkwright", from the recently created digital remastered version at the best resolution that it has ever been seen in. The CD is in some ways the "Director's cut" of the comic and was created to answer the perennial "where do you get your ideas from?" question asked by fans. The first chapter of it has been put online for free viewing due to the inherent difficulty in explaining what it contains.