Earth's recent reprieve from full-scale disaster is about to end sooner than expected. The second book in the Sentinels of Tzurac trilogy, "Zarkwin's Revenge" begins five years after the conclusion of "Terra Major Under Threat."

When Jackson and Khaneera, both serving life sentences for their crimes against the Federation, escape prison, their unfinished mission snaps back into place, reigniting the rebel forces-and their own feelings for each other.

Having failed their operation once, they don't intend to taste defeat again. And Khaneera knows exactly how to ensure they get to...