text: The series began in April 2008 , and after several cameos , Piper made her official return as Rose in the series four final episodes `` Turn Left '' , `` The Stolen Earth '' and `` Journey 's End '' .
simplified: The series began in April 2008 , and after several cameos , Piper made her official return as Rose in the series four final episodes Turn Left , The Stolen Earth and Journey 's End .