Melissa was a girl whose birthday was on 25 December. Because her birthday was on Christmas Day, she and her parents, Sandra and Jason, celebrated on her half-birthday, 25 June, even after they divorced.

When Melissa was eleven-and-a-half, she and her parents went to WendiWorld. Though it was meant for pre-teens, Melissa thought WendiWorld was more for pre-schoolers. Melissa became upset when her parents started arguing, and she unknowingly became controlled by an alien sprite that had been abandoned on Earth hundreds of years ago. She was able to make inanimate objects come to life, and she thought she was in control, but the Seventh Doctor told her she was being controlled. With concentration she was able to break the alien's control. (PROSE: Spookasem)

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