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 #1 New York Times best-selling novelist, scriptwriter and comics author Karen Traviss has received critical acclaim for her award-nominated Wess'har series, as well as regularly hitting the bestseller lists with her Gears of War, Halo, and Star Wars work. She was also lead writer on the 2011 blockbuster game Gears of War 3 .  A former defence correspondent and TV and newspaper journalist, she lives in Wiltshire.