After a fairly slowly paced second volume and a more intense third volume, "The Aftermath" leaves many of the characters of the first three volumes in the background. Gone are Pancho Lane, Lars Fuchs and Martin Humphries, except for some incidental mentions. The main focus is on the Zacharias family and Dorn, (formerly known as Dorik Harbin), a cyborg repaired after an attempted suicide and trying to atone for a life of murder and death.
Essentially, the plot follows different threads as they intertwine with each other and come together with the Artefact on the asteroid forming something of a centre point. Victor Zacharias chases his family across the Belt, trying to find them after being attacked by Harbin. George Ambrose still tries to run the habitat near Ceres, though he is not one of the main characters. Valker and his crew are thrown into the mix as something of the bad guys, and there is the HSS flunkies who are hunting down Dorn and his companions to prevent their speaking out about Martin Humphries little episode with the Artefact.
The book moves with a very good pace, and I have to admit that I enjoyed the simple, no nonsense style that Bova writes with. Unlike some authors, he keeps details to a fair minimum to allow for a heightened pace to the story. It serves the book well, though sometimes I was a bit confused on how to imagine certain things working. An example is the wheel shaped ships and how the command pods fit into it.
Overall, I enjoyed the series a lot and it was a good read. I would recommend Ben Bova to anyone who likes the idea of near-future sci-fi, and enjoys a good action filled yarn. I definitely enjoyed this one and it kept me absorbed until the last page.