Join Josh in this second book in the series as he goes on a wild ride into space. Grandfather has done it again. He has left an interesting artifact for Josh up in the treehouse. But, what does it mean? As Josh dons this new find, the woods begin to fade away. As the treehouse disappears, this time, Josh finds himself out in space where cries for help lead to a heroic rescue. Will he be able to save the young astronaut in time? To find out, read on.