In a bleak, post-apocalyptic Earth ruled by powerful machine minds, a seemingly random thirteen-year-old girl from Oakland is given super abilities and charged with saving the world. Queen of Babylon, the second book in the Babylon Twins series, is a story about the weak becoming strong, children becoming gods, and everyone still trying to figure out how to adult. San Francisco?now Yerba City?is guarded by the unlikeliest hero: thirteen-year-old Josephine. The thing is, she's always seen herself as a loner . . . not a hero. Having lost her only sibling to a family tragedy at age three, she's coped by talking to her twin's ghost in a secret language they call the Twinkling.   This connection got her through the end of the world, what came after, and the once-in-a-lifetime chance to guard her new home as a biomechanical robot (with a cloned army of herself called ?the Josephines? to boot). But when Yerba City is threatened by an unstoppable language virus created by the hideous biomechanical entities known as the Siberians, the Josephines' secret language is the only thing that stands between what's left of civilization and the ?Babble.? There's just one problem. The Josephine charged with this dangerous mission?nicknamed Seven?has lost her ability to understand the secret language.  In this thrilling sequel to Babylon Twins, it's up to Seven and heavily armored, trigger-happy city monitor Thaddeus?as well as feisty twins Clo and El, the Josephines' favorite frenemies?to destroy the language virus, guard the secrets of the Twinkling, and save humanity.