Maks stared at the glittering lights of the circus tent that rose on the outskirts of the city like an enchanted castle. Standing next to him were Lena, holding a ticket in her hand with shiny gold print, and Igor - sceptical but full of curiosity. The Belladonna Circus came once every ten years and always caused a sensation, but nobody ever knew where it came from. It disappeared as quickly as it appeared, leaving rumours and mysteries. When the show came to an end, most of the audience had already left. Everyone was talking about the acrobat who levitated without ropes, or the magician who made the tiger disappear in front of the audience. But Maks had the feeling that not everything was part of the show. During the interval, he noticed one of the clowns - the one in the blue mask - exchanging quick glances with an acrobat. Then he headed towards the no-go area. - 'Let's go see what's going on in there,' Lena suggested, clutching her ticket. - Are you crazy? - Igor looked around nervously, but didn't resist as they moved towards the curtained area. Backstage, the light was dim and the air smelled of popcorn and something else - like ozone after a storm. They spotted a narrow corridor leading to a room full of props. Gold hats, old trunks and strange mechanisms piled up in the semi-darkness. Suddenly they heard a quiet whisper. - 'Hurry up, we're about to start...' Maks stopped as if he had been caught off guard. On the other side of the room, a clown in a blue mask, together with a magician, were opening a heavy, ornate door from behind which a faint glow emanated. Lena took a step forward, but then the floor beneath their feet creaked quietly. The clown turned abruptly and his gaze stopped straight on them. - 'I think we have visitors,' he said, his voice echoing off the walls. At the same moment, the door to the strange room slowly began to open even wider, and a blue mist poured out from behind it. Lena, Maks and Igor looked at each other, uncertain whether they should run away or discover what was hidden on the other side....