Amanda Waller needs Kryptonite, and only Lex Luthor has it! But a deal like this won’t be cheap-or easy. And soon, the dark energies of the Black Vault are driving everyone in Belle Reve Penitentiary to acts of violent, bloody madness. Everyone except Harley Quinn, who’s somehow been…cured? Plus: welcome to Evil Anonymous, the support group for super-villains in need, where no problem is too insane or homicidal.