First Centurion Kosnett stopped Zerzan. Now, they have returned, like Heather Lau always knew they would. In the darkness between galactic arms, she must undertake a deadly duel with another invasion fleet come to Unify Yaumgan. And the rest of the galaxy if she can't stop them. Warlord of Yaumgan, the sequel series to the Jessica Keller Chronicles and First Centurion Kosnett, starts a desperate war to stop an empire of evil from unifying everyone. After you finish Warlord of Yaumgan , you can continue with the rest of this series, starting with Ground Control.