In the mirror universe, Erin Stone was a Terran officer in the Imperial Starfleet during the mid 23rd century. She served aboard the ISS Indomitable under the command of Captain Nathan Thorpe. Following Thorpe's execution by Doctor Sarah April, she succeeded him as captain of the Indomitable while Thomas Blair, whom she considered utterly loyal to her both on and off duty, became the ship's first officer. However, their tenures in these new position proved to be short-lived as the Indomitable was destroyed by a Klingon battle cruiser in orbit of H'atoria only days later. (TOS - Mirror Universe short story: "Ill Winds")