Not much is known about Rhea other than she was a video game designer and writer for Sierra Entertainment. She helped design The Hobbit, Star Wars: Clone Wars Adventures, Pirate101 and Wizard101 she helped write Wing Commander: Secret Ops.
She also tested these games: CyberMage: Darklight Awakening, Privateer 2: The Darkening, Wing Commander: Prophecy, Ultima Online, Jane's Combat Simulations: F-15, Ultima IX: Ascension and Sid Meier's Alpha Centauri.
References
http://www.mobygames.com/developer/sheet/view/developerId,19276/