Was it the perfect crime? When Bob Moranes unlocks the door to his pharmacy, he gasps in shock. The store is in ruins, and the cash register is empty. But medicine and money aren't all that's missing; so are the burglar's fingerprints!High-interest topics, real stories, engaging design, and astonishing photos are the building blocks of the XBooks, a new series of books designed to engage and motivate reluctant and enthusiastic readers alike. How can DNA help a convicted person prove their innocence? How did a burglar steal from a store without leaving any fingerprints? Why was the tiny town in Hardin, Missouri, awash with skeletons after a huge flood? With topics based in science, these action-packed books will help students unlock the power and pleasure of reading... and always ask for more!