Class 2 of the sixth grade transferred a new classmate named "Tu Ling" during the graduation season. He was well-behaved, smart and decent. Only his deskmate Feng Guoguo felt the mystery about him... By chance, the friends learned Tu Ling's secret and completed various mysterious tasks with him. Together, they traveled through time tunnels to talk to the ancients, traveled in the sky on airships, rescued injured pandas, and united bravely in the face of crises. With each fantasy adventure, the friendship between the friends deepened, and Tu Ling also changed. Summer vacation is coming, and a conspiracy has surfaced. How will the friends deal with it this time?
Purpose: Readers and children will take adventures with the protagonist group through text, grow up in unique experiences, and gain courage, wisdom, and friendship.