Romeo and the Beastly Bullies

The story by Silvia Beck Speyer conveys the message that you have to believe in yourself, have courage, and be persistent in order to prevail.
Romeo was a friendly dachshund whose life was made miserable by three large dogs in his neighborhood. He desperately tried to become their friend. When he nabbed a burglar, his enemies couldn't help but admire him, and they were ashamed of their bullying.
They became friends and valuable helpers of the police, guarding their neighborhood.