Velocity Weapon

I enjoyed this novel a lot. It requires some willing suspension of disbelief (probably more so, if you really know your astrophysics), but if you're willing to give it a little leeway on far-fetched technology, it's a good space adventure with some interesting worldbuilding and a fairly suspenseful plot.

Despite it being 500 pages long, I did not begrudge it those 500 pages, but... it does not even make a pretense of being a whole story with a real ending. It "ends" with a major cliffhanger. I mean, I don't mind if a novel leaves enough unresolved setup for further adventures, but this story is just blatantly unresolved. If this pisses you off, as it does me, you may wish to hold off reading it until however many books are in the series have all been published.