| abstract | - Betty is an old lady who hasn't been feeling very well recently. She lives alone with her new stray dog Pookie for company. When she venture out to the shops on her way to get her hair done before Mary's birthday, she is stopped by the Doctor posing as an RSPCA representative. He tells her that Pookie isn't a Yorkshire terrier. Pookie is a large, purple creature, a parasitic Kera-Bera Beast stranded on Earth and feeding off of Betty's life energy, projecting the illusion that he is dog. Betty doesn't believe him. She goes off to her hairdresser's appointment. Amy is waiting with a converted hairdryer. While the Doctor distracts Pookie, Amy turns on the dryer. The Doctor has adapted it to reverse the psychic link between Betty and Pookie. Betty is left with a pink, punky hairstyle, her energies are recharged and the Kera-Bera beast is transformed into what Betty believed it was, a cute, little — albeit purple! — dog.
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