These first four direct-to-video films differed from the original series format by placing the characters in plots with a darker tone and pitting them against actual supernatural forces. "Scooby-Doo on Zombie Island", featured the original 1969 gang, reunited after years of being apart, fighting voodoo-worshiping cat creatures in the Louisiana bayou. "Scooby-Doo! and the Witch's Ghost" featured an author (voice of Tim Curry) returning to his Massachusetts hometown with the gang, to find out that an event is being haunted by the author's dead ancestor Sarah, who was an actual witch. "The Witch's Ghost" introduced a goth rock band known as The Hex Girls, who became recurring characters in the "Scooby-Doo" franchise.