FROM SARAH A. HOYT:  Darkship Renegades.

A crisis can stress the best of systems. Eden, a secret colony created by a people who accept no ruler and now laws, finds its energy supply blocked by Earth. Which allows a would-be savior
to rise to power. In this science fiction adventure, between two worlds,can Athena Hera Sinistra, Earth expatriate, and her husband Kit find the long-lost tech that will allow Eden to be free once more?
And can they do so while fighting one of the ancient rulers of Earth who threatens to kill Kit by high-tech biological means?
As they battle hostile forces with the help of unreliable allies, only one thing is certain: Kit and Thena will fight every power, risk every danger and counter any attack in order to return to Eden and freedom.