The Garfield Show
Curse of the Cat People (1x25)
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Liz has just come back from a trip to Egypt and has brought an old mirror as a souvenir. But it's a magic mirror; one lick from Odie, and he and Garfield get sucked through a door into a parallel world! On the other side, the cats are waiting for their new Pharaoh to arrive, accompanied by his jackal.