In the ensuing chase, Valdronya's costume is blown away by Scooby and Shaggy's airboat's propeller, revealing modern clothes and Tulie's hover boots underneath, and the vampire is then captured by Fred.
Valdronya arrives, but Shaggy and Scooby distract him while Velma unties her. Daphne also succumbs to the mist and in a trance she agrees to the wedding. The monster appears to claim his bride, and with a swirl of green mist he sends the actors to sleep, telling them that when they awake they will be immortal. The actors tie Daphne up and put the tiara and necklace on her. On their way, Van Helsing is pulled from the ship and disappears when Fred and Velma investigate they instead find Shaggy and Scooby, where Velma proves to Shaggy that he is not turning into a vampire as it was just a splinter on his neck. When she turns down his offers of affection, with a promise of immortality, he kidnaps her to become the bride of Valdronya.ĭaphne alerts Fred via text message, and Fred, Velma, and Van Helsing travel into the swamp to stop the marriage ceremony. Daphne decides to question the troupe and meets with Bram. Van Helsing, however, says the clothing has been changed over the years due to disintegration of the original material, but the body is still the actual vampire. Meanwhile, Fred, Daphne, and Velma discover the fabric from Valdronya's costume is from modern material. There they meet Tulie, who reveals he invented a pair of hover shoes, but the plans were stolen by vampires, and he was forced to flee into the swamp. That night, Shaggy and Scooby are attacked by Valdronya and chased into the swamp, where Shaggy thinks he's been bitten and will turn into a vampire. On the way back, they are attacked by Valdronya. They check out the trailer of his organization and discover he plans to run for Mayor, and is using the vampire story to increase his notoriety. Mayor Poubelle also gets a media exposure benefit for his anti-vampire crusade. Out on the festival grounds, they find Lita Rutland wants to profit from the publicity of the vampire appearance. Back at the museum, the gang discovers the bridal jewellery missing and the body gone, although the tomb is still sealed. The group has another member backstage ready to appear, but to everyone's surprise, their incantation proves far more successful, and the resurrected Vadronya appears on the stage before flying away. The troupe leader Bram, who catches the eye of Daphne, announces the group will perform a vampire resurrection ritual. The actors are deeply dedicated to the vampire lifestyle and only perform at night.
The gang and Van Helsing attend a performance by a troupe of actors. Van Helsing takes the gang back to his museum and shows them an ancient book detailing vampire ways, a jeweled necklace and elaborate tiara claimed to belong to a vampire bride, and a glass-faced casket containing the inert body of Lord Valdronya, a centuries-old vampire. Mayoral candidate Jesper Poubelle, an anti-vampire agitator, is also stirring up trouble by protesting the festival. They also meet their host, Vincent Van Helsing, a descendant of Abraham Van Helsing, who runs a vampire museum and is an author, although his books are not selling. They meet Lita Rutland, the festival organizer, who explains that tourism is down and the festival is losing funds. Velma drives everyone to Petit Chauve Sourie Ville, a small town in Louisiana that is hosting a vampire festival called "Vampire Palooza". Fred, Daphne, Velma, Shaggy, and Scooby decide to take a well-deserved vacation.