The novel “Babylon’s Ashes” by James S.A. Corey was published for the first time in 2016. It’s the sixth book in the Expanse series and follows “Nemesis Games”.

The Free Navy devastated the Earth, threw Mars into a crisis and caused a deep division among the Belters, with Fred Johnson’s OPA struggling to maintain its importance. Many people try to escape to other solar systems through the portal but there’s no longer anyone able to regulate that traffic and prevent migrants from being attacked.

Necessity leads the former enemies of Earth, Mars and OPA to work together to try to prevent the solar system from falling completely into chaos. James Holden and the crew of the Rocinante return to the center of crucial events in an attempt to change the fate of the war against the Free Navy but its leader Marco Inaros considers them special targets to be strauck at any cost.