Five years before Dick Grayson became Robin, Bruce Wayne adopted nine-year-old Sparrow after the death of her mother, an old friend from his high-school days. Kind, innocent, rebellious, and hopelessly clumsy, Sparrow quickly became Bruce and Alfred’s beloved first child—until she was killed at ten during a Joker attack on a museum field trip. Believing her gone forever, Bruce secretly buried her beneath the flower beds she once helped Alfred tend. But nine years later, Sparrow is unexpectedly revived by a group of diabolical scientists who keep her as their pawn until she escapes two days after her twentieth birthday. Knowing Bruce never abandoned her and that her death wasn't his fault, Sparrow has only one goal after years of suffering: find her way home and hug her father again.