From opposite ends of time, two heroines unite for an otherworldly adventure! Barbarella, the siren of space, meets Dejah Thoris, Princess of Barsoom, and together they must solve a murder mystery that spans time and space in order to find their way home. Leah Williams (Adventure Time Comics, X-Men: Black) teams with Germán García (Action Comics, X-men) for a fun, deadly, mind-bending epic!