High-interest topics, real stories, accessible text, engaging design, and astonishing photos are the building blocks of the XBooks, a new series designed to engage and motivate reluctant and enthusiastic readers alike. Did Bigfoot really exist? How can bodies be preserved in a swamp for more than two thousand years? Did the U.S. government cover up a UFO landing? With topics based in science and history, these action-packed books featuring strange events will help students unlock the power and pleasure of reading... and always ask for more!