Doctor Dolittle's Return, published in 1933, is the ninth book in Hugh Lofting's Doctor Dolittle series. The book was published five years after the publication of Doctor Dolittle in the Moon and continues the plot line begun in that book. Lofting originally intended to end the series with Doctor Dolittle in the Moon, but for some reason changed his mind and the book was published. Source: Wikipedia (en)