Molly opened the bag of loot annotations. "Bill, these to-do list scraps were gold," she declared, waving them in Bill's face. "Everyone at this party is into a game called "Hidden Presents," where they hide presents for other guests to find." Bill snorted. "Works like a charm for finding your socks, I guess," he commented, digging out a worn baseball cap from his backpack. "Good thing we overheard 'hidden presents.'" Molly pulled out an elevator pass for floor three and studied it. "I found this in a rangefinder surfer kid's backpack. I was fixing it on the deck, by the way." Bill raised an eyebrow. "You learning how to surf, or something?" The elevator bell sounded. "Oh, I think they're calling for the cake now," Molly observed, bulging with certainty. "Plus I just nabbed your roll of duct tape." Bill rolled his eyes, applying the crown onto his spiky hair. "Surfing, stealing, whatever. I'm getting an A in improvisation." Molly checked her phone. "We're ten seconds off." They pocketed molotov cocktails and sprinted uphill through the station's warmth. "Blame it on the crowded elevators," Bill muttered. "Have you seen all the mummies and penguins parading everywhere?" Molly snickered. "Well, we might have snatched someone's Uncle Whirl's wig earlier." In a pinch of coins, Molly had her perfect timing down. "Two more minutes 'til the sandcastle façade's in view," she whispered. "Then, we tumble the cake!" Bill countered with, "And if we tuck-and-roll inside a humongous confetti ball?" Molly burst into giggles, adjusting the stash of diamonds. "Total heist master plan. You're in the top ten of my favorite pranksters!" A wave of giggling children dispersed in all directions. Molly and Bill could barely hide their grin as they sidled up to the waiting cake, ready to aim for their plan B: The ultimate loot of bouncy toys. But the cake tumbled to block their path. "Ah, gotcha!" Bill gleefully exclaimed. "Mother of all birthday tricks." In tandem, Molly and Bill cackled, clinging to the motors' rhythm as the cake morphed into its secret form. They were driving the clanky riddle-responder vehicle, unofficially celebrating with cupcakes and jelly beans. To their side, the crowd raised their ice cream cones in applause. "I really need to learn to repair escalators, though," Molly admitted. "We almost dodge an avalanche coming down." Bill tapped his watch, "Now it's the Thames tubing experience!" Soon, they were whirling along the sheer glee of the party's essence, aboard tubes floating efficiently upstream. "Besides," Bill explained, "a children's party lacks a touch of danger. Until next time, it's kids' gifts, adults' chaos!" Molly roaranged the precious mementos she'd nabbed amidst all the childhood fun, her face glowing with pride. "All I need is a deli slicer," she mused, scoffing at the idea of not stealing more presents. "But first, let's finish this grand celebration. And make sure no other thieves spoil the magic!" Together, Molly and Bill enjoyed the adrenaline rush of the heist, finding joy in the honest thrill and laughter. One last stolen present? Please. But it was such a family-friendly event, minus the heisting part.