I Am Transforming. All the Bunnies Fly High

Before you is the second book in the series "I Am Transforming". The adventures of the shape-shifting children continue, and everyone is eagerly waiting to see who will be the next to turn into an animal. But suddenly, Einstein disappears. Just yesterday, he was worried about the math test, and today he didn't come to school. His friends are confused: they need to urgently find their classmate! And at the same time, find out if it's true that bunnies can fly high.