On the planet Cybertron, a war was waged between the Autobots and the Decepticons for control of the Allspark, a mystical talisman that would grant unlimited power to whoever possessed it. The Allspark is smuggled off the planet, but Megatron goes in search of it. He tracks it to Earth and his desire for power sends him into the Arctic Ocean. The sheer cold forces him into a paralyzed state. His body is later recovered, and before going into a comatose...

The Autobots learn of a Cybertronian spacecraft hidden on the moon and race against the Decepticons to reach it and to learn its secrets.

The destruction caused by tsunamis and floods not only affects Earth's geography, but also the people, plants, and animals present in the areas directly affected. Why do these natural disasters happen, and how can areas recover from them? These questions are explored through well-researched main text to clearly provide young people with scientific facts about natural disasters. Bold and exciting design elements, such as intense photographs and detailed...