"Haunted House Mouse" is the thirtieth episode of The New Adventures of Mighty Mouse and Heckle and Jeckle. It originally aired on CBS on December 8, 1979.


When her uncle Greymouse dies, Pearl Pureheart goes searching for his will inside his old and dilapidated mansion, which was written to leave everything he owned to an orphan's fund. However, the villainous cat Oil Can Harry wants the will in order to burn it and take all the inheritance for himself. It is up to Mighty Mouse to make sure that Oil Can Harry's plan to steal Pearl's inheritance by scaring her away crumbles.

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