phenomen a book

This story is about a boy named Thorain. When he was one year old, he got swept away by a flood and found a new family. Then they moved to the city. After that, Thorain and a girl called Jingo found out that they could change into things. Then a group including four shapeshifters, one eagle, and a parrot came to take Thorain home. But on the way, a tornado swept through the town, and Thorain and his brother Torain had to find their way home by themselves. At last, they made it, and Thorain was reunited with his family.