Three interlocking worlds. Four people looking for answers. April, 1960: In the cellar of a professor's house in Oxford, fifteen-year-old Rosie goes in search of a missing cat - and instead finds herself in a different world. Anterwold is a sun-drenched land of storytellers and prophecies. But is this world real - and what happens if Rosie decides to stay? Meanwhile, a rebellious scientist is trying to prove that time does not even exist - with potentially devastating consequences. As the three worlds come together, one question arises: who controls the future - or the past...?