In the mirror universe, Bering's World was a planet under the influence of the Klingon-Cardassian Alliance.

In the 2340s, the crew of the Terran rebel starship Lakul visited Bering's World. They were unfortunate enough to visit during a Cardassian inspection that turned into a riot. Guinan was severely battered and a shapeshifter took her place aboard the Lakul until she was able to recover. (Mirror Universe short story: "The Traitor")

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