Description: Lin Mingzi's classic picture book Accompany parents and children to discover the magical moment of "growth and start" in life Knock! The mysterious surprise outside the door arouses the curiosity deep in the child's heart! knock! Be careful to express your expectation and desire for friendship! The sudden knock on the door, the surprise gift, who is the person outside the door... Xiaohui moved, and when her father and mother were busy tidying up the new home, a small "knock" came from outside the house. But when Xiaohui ran to the door to see, there was no one outside the door, only a bouquet of Viola flowers fell under the mailbox.
