On the planet called Transformation Prince Saligia buys dreams and turns them into adverts. He wants to take away Tytus’ dream to become a human. He uses the virus of advertstupifying and lures him to his planet. Unexpectedly, instead of Tytus, Romek and A’Tomek lose their dreams and Tytus, with the help of the Girl and residents of the Kingdom of the Thick Book, sets off to get their stolen dreams back. The dreams of his friends and the planet residents are freed and Tytus finds out that dreams cannot be replaced by material things.