The Gravity Box II
Macera, Norman![The Gravity Box II](https://support.digitalhusky.com/media/annotations/sorted/430/43021838/CHSBZCOP0343021838.jpg)
Race To The End Of The World And Beyond
Once again it is up to our two boy heroes Shawn and Jimmy to save the world. A massive comet headed towards Earth must be stopped before crushing the planet. And it seems that the only hope for all mankind are The Gravity Boxes. The problem being that before the boys can go into action they are thrown back into the 12th century by the Professor's new time travel machine.
Upon arriving in the past the ...