This book is a biography of both Rin-Tin-Tin and Lee Duncan, his owner and trainer. It places their lives in the context of their times, especially France, where they met, and Hollywood, where Rin-Tin-Tin became a star. At the heart of the book are the questions: “Why did a dog, at that particular time, become so famous?” and “How much of the legend of Rin-Tin-Tin is really true?”