内容简介：
DannyMac, Armstrong and Tef are an unlikely trio. DannyMac lives in a children's home whilst Armstrong lives on the rich and vast estate of his father. And yet the three of them have one thing in common. They spend every minute of their spare time building rockets, in the Shack at the corner of the huge Armstrong Mansion gardens. It is an escape for the trio from each of their problems...it is the place of new ideas and new inventions...it is a place of dreams. But soon they are to make an amazing discovery. In one strange moment they discover the Sphere. It is a discovery that will cause them more than a few problems. But if they can just hold on maybe this could be the answer to all their dreams.