Rollo's Experiments: Enriched edition. Youthful Adventures of Learning and Growth

Rollo on the Atlantic: A Young Boy's Maritime Adventure Across the Atlantic

Rollo in Geneva: An Educational Adventure in Historic Geneva

Rollo on the Rhine: Enriched edition. A Journey Along the Legendary Rhine: Adventure, History, and Education

Marco Paul's Voyages and Travels: Vermont

Marco Paul's Voyages & Travels: Volume 5

Romulus: Enriched edition. Makers of History

Xerxes: Enriched edition. Makers of History

Rollo in Scotland

The Rise and Fall of Rome's Greatest Conqueror: The History of Julius Caesar

Richard II: Enriched edition. Makers of History

Richard III: Enriched edition. Makers of History

Margaret of Anjou: Makers of History

Queen Elizabeth: Enriched edition. Makers of History

William the Conqueror: Enriched edition. Makers of History

The History of Genghis Khan: A Detailed Biography of the Mongol Conqueror and Emperor

Rollo in Geneva

History of Julius Caesar

The Corner-stone: Or, A Familiar Illustration of the Principles of Christian Truth

History of Cleopatra, Queen of Egypt