Derpy is now a princess. But she doesn't know what role she is meant to play in Equestria. So she asks for help from Doctor Whooves, Silver Hooves ( Derpy's brother) , Rainbow Dash, and Soarin' . They go on an epic adventure through time. But Derpy has to make a huge sacrifice to continue. Will she finally know what her role is? Will she accept the sacrifice? Also starring princess Celestia. Also this is based off twilight becoming a princess but I will all be fixed later in the story