Hugh Lofting 
The Voyages of Doctor Dolittle 

The Voyages of Doctor Dolittle is the second of Hugh Lofting’s Doctor Dolittle series.
Doctor Dolittle meets Tommy Stubbins, the young son of the local cobbler, who becomes his new assistant. Tommy learns how to speak animal languages and becomes involved in the Doctor’s quest to find Long Arrow, the greatest naturalist in the world. This novel takes us to the Mediterranean, South America, and even under the sea. He faces many problems while taking care of these animals.