Books in Unsolved Mystery Files series

Why did ancient people in Peru create the Nazca Lines? Who built England's Avebury Circle and why? What is the purpose of Easter Island's huge stone statues? The world is full of unexplained archaeological wonders. With dramatic photos and intriguing theories, readers can go on an expedition to discover several fascinating mysteries left to us from the ancient world.

How can massive stones slide across the desert untouched? Can lightning really bounce like a ball? Why was it raining fish in Europe in 2004? Nature holds some of our world's strangest mysteries. Some of the best minds on the planet have tried to explain these unsolved phenomena. With dramatic photos and intriguing theories, readers can go on an outdoor adventure to explore some of nature's most puzzling mysteries.

What happened to the people of the Roanoke Colony? Why did the crew of the Mary Celeste abandon ship? Who wrote the mysterious Voynich Manuscript and what does it mean? History is filled with many unexplained and baffling mysteries. With dramatic photos and intriguing theories, readers can go on a journey through time to explore some of history's most fascinating mysteries.

Why did robbers steal precious works of art from Boston's Isabella Stewart Gardner Museum in 1990? In 2005, how did thieves in Amsterdam pull off the largest diamond heist in history? Throughout the world, some criminals seem to pull off the perfect crimes. They leave us asking, “How’d they do it?” or “Why’d they do it?” and “Could it happen again?” With dramatic photos and intriguing theories, readers can go on a journey around the world and learn about some tough crimes to solve.

How can massive stones slide across the desert untouched? Can lightning really bounce like a ball? Why was it raining fish in Europe in 2004? Nature holds some of our world's strangest mysteries. Some of the best minds on the planet have tried to explain these unsolved phenomena. With dramatic photos and intriguing theories, readers can go on an outdoor adventure to explore some of nature's most puzzling mysteries.

What happened to the people of the Roanoke Colony? Why did the crew of the Mary Celeste abandon ship? Who wrote the mysterious Voynich Manuscript and what does it mean? History is filled with many unexplained and baffling mysteries. With dramatic photos and intriguing theories, readers can go on a journey through time to explore some of history's most fascinating mysteries.

Why did ancient people in Peru create the Nazca Lines? Who built England's Avebury Circle and why? What is the purpose of Easter Island's huge stone statues? The world is full of unexplained archaeological wonders. With dramatic photos and intriguing theories, readers can go on an expedition to discover several fascinating mysteries left to us from the ancient world.