A warm evening was falling on the Oder, and Marek stubbornly tried to get Kaśka out of the flat. - You, it's Saturday after all! - he moaned, spinning in place. - Why don't we at least go to a bar? Or, I don't know, pretend we're pirates? Kaśka looked up from her mug of tea, raising an eyebrow. - We pretended to be pirates last week. You ended up with a frying pan on your head and an unpaid bill. Marek was already about to give up when a courier rang the doorbell with an envelope. Inside - two tickets to the event "Ship of Weirdness: the Mad Hatter's Ball". - This is a SIGN - Marek stated with seriousness. - We have to be there. An hour later, Kaśka was crooning in a pink beret and Marek was proudly displaying his pizza-shaped hat. At the marina, they were greeted by a hostess who looked like a cross between a flamingo and a chef. - Just one rule: no rules! - she smiled mysteriously and invited them on board. After only a few steps, Kaśka saw the dance floor, on which were dancing .... ducks in melons and striped zebras. Salsa was oozing from the speakers and waiters were tossing tarts like bartenders juggling bottles. Marek grabbed her hand. - I knew this was going to be no ordinary Saturday. Suddenly the lights dimmed and the captain's voice rang out through the megaphone: - Dear passengers, we are approaching the craziest highlight of the cruise. Please get your hats ready for the SURPRISE! Confetti started falling from the ceiling and.... something else. Marek felt something slippery on his head. He looked up and saw that the ceiling was turning into.... But then there was a shout from the stern and everyone ran that way, not knowing what was waiting for them around the corner....