All good things must come to an end, and this eighth volume in the Space Cadet series was the final one. Tom and Astro are separated from Roger for much of this book, but one has to believe that the trio of Polaris cadets were re-united for many more fine and thrilling adventures, that they went on to graduate from the Space Academy with the highest honors, and that side-by-side they lived long and happy lives keeping the spaceways safe as members of The Solar Guard. As Greg Kihn observed, they don't write 'em like that anymore.
