Disclaimer: Book links take you to Amazon. As an Amazon Associate We earn money from qualifying purchases.
Publication Order of Duke de Richleau Books
| The Forbidden Territory | (1933) | Hardcover  Paperback  Kindle |
| The Devil Rides Out | (1934) | Hardcover  Paperback  Kindle |
| The Golden Spaniard | (1938) | Hardcover  Paperback  Kindle |
| Three Inquisitive People | (1940) | Hardcover  Paperback  Kindle |
| Strange Conflict | (1941) | Hardcover  Paperback  Kindle |
| Codeword – Golden Fleece | (1946) | Hardcover  Paperback  Kindle |
| The Second Seal | (1950) | Hardcover  Paperback  Kindle |
| The Prisoner in the Mask | (1957) | Hardcover  Paperback  Kindle |
| Vendetta in Spain | (1961) | Hardcover  Paperback  Kindle |
| Dangerous Inheritance | (1965) | Hardcover  Paperback  Kindle |
| Gateway to Hell | (1972) | Hardcover  Paperback  Kindle |
Chronological Order of Duke de Richleau Books
| The Prisoner in the Mask | (1957) | Hardcover  Paperback  Kindle |
| Vendetta in Spain | (1961) | Hardcover  Paperback  Kindle |
| The Second Seal | (1950) | Hardcover  Paperback  Kindle |
| Three Inquisitive People | (1940) | Hardcover  Paperback  Kindle |
| The Forbidden Territory | (1933) | Hardcover  Paperback  Kindle |
| The Devil Rides Out | (1934) | Hardcover  Paperback  Kindle |
| The Golden Spaniard | (1938) | Hardcover  Paperback  Kindle |
| Codeword – Golden Fleece | (1946) | Hardcover  Paperback  Kindle |
| Strange Conflict | (1941) | Hardcover  Paperback  Kindle |
| Gateway to Hell | (1972) | Hardcover  Paperback  Kindle |
| Dangerous Inheritance | (1965) | Hardcover  Paperback  Kindle |