The Hollows 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

Hollow Men (The Hollows 2)

Hollow Men (The Hollows 2) by Amanda Hocking

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Hollowland (The Hollows 1)

Hollowland (The Hollows 1) by Amanda Hocking

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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