<Tr> <Th> 21 22 </Th> <Td> </Td> <Td> "Attack of the Mutant" </Td> <Td> William Fruet </Td> <Td> The Masked Mutant </Td> <Td> Attack of the Mutant (Goosebumps #25) </Td> <Td> September 7, 1996 (1996 - 09 - 07) </Td> <Td> N / A </Td> </Tr> <Tr> <Td_colspan="8"> <P> Part 1: Skipper Matthews finds out his favorite comic book villain, the Masked Mutant, is real after discovering his lair . </P> Part 2: Skipper Matthews fears he is losing his grip on reality after a visit through the Masked Mutant's lair and discovers that his new best friend is not who she seems . Guest Star: Adam West as The Galloping Gazelle </Td> </Tr> <P> Part 1: Skipper Matthews finds out his favorite comic book villain, the Masked Mutant, is real after discovering his lair . </P> <Tr> <Th> 23 </Th> <Td> </Td> <Td> "Bad Hare Day" </Td> <Td> John Bell </Td> <Td> El Sydney </Td> <Td> Bad Hare Day (Goosebumps #41) </Td> <Td> September 14, 1996 (1996 - 09 - 14) </Td> <Td> N / A </Td> </Tr>

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