Behind Closed Doors Series Novels

Teotihuacan’s Pyramids: Urban Planning and Cosmic Engineering in Ancient Mesoamerica

Teotihuacan’s Pyramids: Urban Planning and Cosmic Engineering in Ancient Mesoamerica

The Persian Qanat Tunnels: Desert Irrigation That Lasted for Centuries

The Persian Qanat Tunnels: Desert Irrigation That Lasted for Centuries

The Inca Road System: Engineering a Mountain Empire Without Wheels

The Inca Road System: Engineering a Mountain Empire Without Wheels

The Roman Pantheon: How Its Concrete Dome Defied Two Millennia

The Roman Pantheon: How Its Concrete Dome Defied Two Millennia

Risks of Temptation

Risks of Temptation by Maggie Cole

R T S A ACT

Stains of Desire

Stains of Desire by Maggie Cole

R T S A ACT

Cavern of Silence

Cavern of Silence by Maggie Cole

R T S A ACT

Haze of Obedience

Haze of Obedience by Maggie Cole

R T S A ACT

Marks of Rebellion

Marks of Rebellion by Maggie Cole

R T S A ACT

Depths of Destruction

Depths of Destruction by Maggie Cole

R T S A ACT

The Russian Revolution and World War I: How War Brought Down the Tsar

The Russian Revolution and World War I: How War Brought Down the Tsar

The Zimmermann Telegram Explained: Germany's Secret Offer to Mexico in World War I

The Zimmermann Telegram Explained: Germany's Secret Offer to Mexico in World War I

Why the United States Entered World War I: From Neutrality to War in 1917

Why the United States Entered World War I: From Neutrality to War in 1917

The Sinking of RMS Lusitania: The U-Boat Attack That Changed World War I

The Sinking of RMS Lusitania: The U-Boat Attack That Changed World War I