What would happen when a lonely, young mare's life is turned around? Tidal Wave, a young, teenage, earth pony, while on vacation, comes upon an old treasure that changes her life forever. Giving her newfound powers and a very important secret. The secret of a Merpony's existence and a secret the princesses thought was hidden for centuries. Will her friend find out? Will the mean mare of the school, Roseluck, find out and embarrass her in front of the whole school?