Hogsumm was a planet in the rim of Mutter's Spiral. It was located beyond Lasty's Nebula, which the Seventh Doctor described as one of the boring areas of the universe. After Sheldukher stole Project FXX Q84 from Checkley's World to help him find Sakkrat, Hogsumm was transformed to resemble the legends about Sakkrat to lure Sheldukher there and recover the project. (PROSE: The Highest Science, AUDIO: The Highest Science)

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