Superman/Batman: Night and Day — Michael Green

The adventures of the World's Finest heroes continues in this new hardcover. First, sidekicks Robin and Supergirl must go undercover in Arkham Asylum. Then, Flash-foe Gorilla Grodd strikes at Superman and Batman through their weakest links: their closest confidants, Lois Lane and Alfred. Plus, a spooky Halloween tale delves into what scares Superman and Batman -- as well as their greatest foes, Lex Luthor and The Joker. And an epic tale tying into DC's BLACKEST NIGHT turns Man-Bat, Bizarro and Solomon Grundy loose on Superman and Batman's hometowns of Metropolis and Gotham City.