Fred leaned against the Mystery Machine, looking out at the shimmering water. Daphne adjusted her scarf, her eyes following a group of festival-goers in pirate costumes. Velma was deep in thought, her brow furrowed as she flipped through a recent newspaper article about a series of strange thefts. Shaggy and Scooby-Doo were already munching on festival snacks, their expressions a mix of delight and anticipation. "Like, I love a good festival, but what's with all the pirate stuff, man?" "Reah, rarrggh!"

Fred gathered the gang, pointing towards the float. "We've got to check this out. There's something fishy going on, and it's not just the seafood buffet," Velma nodded, adjusting her glasses for a better look at the float. "Legend has it they're after the town's hidden treasure. But why now?" "Ruh-oh!" Scooby-Doo quivered, his eyes wide with a mix of excitement and fear.

Shaggy and Scooby-Doo approached the fisherman, their curiosity piqued. Old Fisherman was a rugged man, his face weathered by the sea. "Aye, beware the Booty Lickers! They won't rest until they've claimed what's theirs," he warned, his voice a raspy whisper. "Like, what do they want with Coolsville?" "Roo knows?"

Fred signaled for a strategic retreat. "Let's split up and regroup at the Mystery Machine!" The gang dashed through the festival, pursued by the ghostly pirates. "Ruh-oh, Raggy!" "Run, Scoob!"

Velma pieced the final clues together, her eyes lighting up with realization. "It's the festival organizers! They were using the legend to cover up their thefts," she declared triumphantly. "And they would have gotten away with it, too, if it weren't for us meddling kids!" "Reah, and Rooby-Roo!"

Daphne smiled, her eyes glowing with satisfaction. "Looks like we saved the day once again," Shaggy and Scooby-Doo enjoyed a feast of festival food, their earlier fear forgotten. "Like, nothing beats solving a mystery on a full stomach!" "Reah, ris is the reat life!"