Book Two of the Ammonite Galaxy series:
Diva and Six are still scrapping with each other, but manage to find the time to start a revolution on Kwaide. At first it seems impossible that they could prove a threat to the Elders, but as word spreads around the planet they find themselves joined by more and more sympathizers.
Cimma is one of them - she and Diva are in their element; but Grace will have to take some agonizing decisions before very long, and will be forced to try to outwit an all-too-familiar enemy.
Arcan may be prepared to help, but even his enormous intellect can't predict...