I'm a stickler for continuity and try to stay focused on only the regular DC Universe timeline. However, it is enjoyable every once in a while to drift off-track and take in some alternate reality adventure and excitement. That's exactly what I've done with the "Arkham City" series of books and I have to say I haven't regretted it yet.
The latest graphic novel, "Batman: Arkham Unhinged," continues to explore the world of the popular video game. It collects chapters 1 through 13 of the online digital series. The book also includes 6 and 7 of the "Batman: Arkham City" Digital Chapters.