In this 8th in the new Tom Swift Invention Series, Tom Swift finds himself involved in a galactic mystery. Something very much like a black hole has been discovered a dozen light years away, but nobody can say for certain what it really is... or if it will affect the Earth. The thing about black holes is they suck in light so they can't really be seen.Tom wants to go investigate. Even his quickest unmanned rockets can't carry enough fuel for such...