Horton Hatches the Egg, by Dr. Seuss, Random Books, 1940.
I love Horton the elephant so much. He is probably the kindest character in all of Seuss world.
In this book, Horton states "an elephant's faithful, one hundred percent". And he was. Even when hunting rifles were pointed at his heart. Even when he was taken from his home and put on a boat. Even when he was forced into a circus. And he was rewarded for his kindness and faithfulness.