(Set Between 'Revenge of The Sith' and 'A New Hope') Mariah is an Imperial Officer on Coruscant. Her parents are also imperial officers. She has just been transferred to Lothal for a temporary job on the new TIE Fighter project, lead by Grand Admiral Thrawn and Governor Pryce. She is in charge of the Design branch of the new TIE Interceptor, designed to crush the Rebel Fleet, lead by the best pilot in the Outer Rim, Hera Syndulla. She went with her best friends and colleagues, Shae and Nym, who are also Imperial Officers.