The White Horse Changes and Changes

At an animal school, Teacher Pearl Finch was hard at work grading assignments.

Suddenly, there was a knock at the door. A student's parent had come to see her.

The visitor said they were the parent of Nian Bao, the little white horse, and that their son had been acting strangely lately.

So, what exactly had happened?

Theme: What suits you is what matters most.