The never-before-seen tale of The Jokers first night in Arkham Asylum is finally revealed! When a lunatic in a clown suit tries to poison Gotham Citys reservoir and is placed in Arkham Asylum before his trial, Detective Jim Gordon realizes somethings different about this new inmate that could forever change the future of Gotham. Backup: Rising-star artist Sweeney Boo joins the series as things get worse and worse for Punchline and Bluebird. Punchlines prison war against the Queen of Spades escalates, and no prisoner at Blackgate Penitentiary will be exempt from choosing sides. And after barely escaping death at the hands of Punchlines former accomplice, will Bluebird have the will to continue her investigation and find the mysterious woman from Punchlines past who has the answers shes looking for?