Dora, the brave explorer with her bright pink shirt and orange shorts, skips into the classroom alongside Franklin, the thoughtful turtle wearing his blue sweater and red hat, their faces lit with excitement for story time. Ms. Marquez, Dora's kind teacher with glasses and a flowing skirt, organizes books on the shelf, while Mr. Turtleton, Franklin's wise teacher with a shell-patterned vest, adjusts the projector. "Franklin, isn't school adventure time the best? I can't wait to hear today's story about hidden treasures!" "Absolutely, Dora! With friends like you and our teachers, every day feels like discovering a new map."

Dora freezes mid-sentence, her eyes widening in terror as the ghostly shape floats closer, moaning eerily. Franklin drops his backpack, his shell quivering, while Ms. Marquez gasps and clutches her chest, and Mr. Turtleton stumbles backward into a desk. "Wooooh... leave this plaaace..." the ghost wails, its voice echoing like wind through cracks. "¡Ay, no! It's a ghost! Everyone, run for our lives! Franklin, teachers, this way—backpack, map, let's go!" "Dora's right! My legs feel like jelly, but we have to get out—fast! Teachers, follow us!"

Ms. Marquez leans against a bench, her face pale, while Mr. Turtleton heaves for breath, his glasses askew. Dora and Franklin huddle together, hearts pounding from the sprint. "That... that was no imagination! A real ghost in our classroom—moaning and floating right at us! What do we do now, children? We can't go back in there!" "Indeed, my shell is still shaking! It touched the blackboard with icy fingers. Dora, Franklin, you're brave ones—any ideas before we call the parents?" "We need super math heroes! I know—let's call Geo from UmiZoomi! He can measure and figure this out with his tools."

Dora activates the call, her voice urgent, as Geo, the math whiz with his orange glasses and UmiTool belt, appears on screen alongside Milli, the pattern expert with pink hair ribbons, and Bot, the friendly robot with glowing blue eyes. Franklin waves frantically. "Geo Umizoomi team! Emergency at school—a scary ghost chased us out! It was white and floaty, with glowing eyes. Can you UmiZoomi to help?" "Don't worry, Dora and Franklin! We're zooming in with our math power. Tell us everything: how tall was the ghost? Any patterns in its movements? We'll measure, shape, and solve this mystery together!" "Yes! Patterns will reveal the truth. Teachers, describe the classroom—any unusual shapes or sizes?"

Geo scans with his UmiTool, measuring ghostly trails, while Milli notes patterns on wallpaper and Bot projects light patterns. The group creeps back in cautiously. "Look—ghost height is 5 feet exactly, but footprints here are size 9 shoes! Not floating—someone's trick! And the 'moan' sound? It's from this hidden speaker behind the board, wired to a timer." "Affirmative! White sheet with wires for glowy eyes—classic prank setup. Patterns match janitor closet supplies!" "Wow, math magic! So no real ghost—phew, my shell can relax now."

Janitor Jenkins, the mischievous school cleaner with a overalls and cheeky grin, steps out sheepishly from hiding. Ms. Marquez crosses her arms, amused. "Okay, you got me! I was testing the new Halloween props for the play—didn't mean to scare you all so bad. The ghost was just me in a sheet with lights and sounds!" "¡Gracias, Geo Umizoomi! You saved the day with super math. No more running—school's safe again!" "Teamwork and numbers solve everything! High-five, everyone—adventure over, friends forever."