Phong, Lan and Hoa went to the bookstore looking for some books. Surprisingly, they noticed an advertisement about the local circus show with crowns and animals jokes. They decided to go. They took bus no.3 and stopped in front of the circus. But, they realised they don't have any tickets and even money! Luckily, Phong's mother-mrs. Ngoc worked as a food seller nearby, lent them some money. But, eventually, 2 crowns came out and jumped up to the table. They started dancing! All of the 3 friends are very happy and interested.