Stop an evil scientist from taking over the multiverse in this interactive book where YOU decide what happens next! Packed with 25 possible endings! Choose Your Own Adventure books–the 4th bestselling children’s series of all time–are back and as much fun as you remember. Kids and adults agree, these are the books that get 9- to 12-year-olds reading. YOU and your single mom live an ordinary life. That is, until one day a girl arrives outside your school claiming to be your long-lost sister ... from a parallel universe! Does your mom's top-secret research at her science lab have something to do with it? Can you and your sister unite your family and stop an evil scientist from taking over the multiverse? Be careful, the choices YOU make might end in glory, disaster, or certain death.

Stop an evil scientist from taking over the multiverse in this interactive book where YOU decide what happens next! Packed with 25 possible endings! Choose Your Own Adventure books–the 4th bestselling children’s series of all time–are back and as much fun as you remember. Kids and adults agree, these are the books that get 9- to 12-year-olds reading. YOU and your single mom live an ordinary life. That is, until one day a girl arrives outside your school claiming to be your long-lost sister ... from a parallel universe! Does your mom's top-secret research at her science lab have something to do with it? Can you and your sister unite your family and stop an evil scientist from taking over the multiverse? Be careful, the choices YOU make might end in glory, disaster, or certain death.