Ross Island was the location of a Canadian research station, the station had the Holiday Memories Tree altered item. In 1979, solar radiation damaged the radio, severing the base's only means of communication with the world. A military expedition visited the base to re-establish contact and they found the base's occupants in various states of madness, rambling about voices in the tree. Military personnel discovered they also heard the tree speaking. After locking the item in a supply crate, they brought it back to the mainland, at which point the Bureau intervened.
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Trivia
Ross Island is a real island of the cooast of Antarctica.