Batman Arkham Unhinged Vol. 4 by Karen Traviss
- The prequel series to the best-selling video game Batman: Arkham City! The mysterious new villian known as the Bookbinder has corrupted Gotham City's food supply leaving the Dark Knight in a race against time to find out the true motive and identity of this threat to the city.
- Collects Batman: Arkham Unhinged #16-20.