Resistance — Daniel Copeland

In book six, Rebekah, Anna, Miriam, and Derrick remain isolated from their friends at the Base. People in the Resistance have helped Derrick and Miriam since the beginning, although the Resistance remained in the shadows. As the kids run from Prime, they become increasingly aware and dependent on the Resistance. And they will need all the help they can get because Prime isn't only a threat to their safety; Prime has become a threat to the world.