The fourth book in the four-part Star Trek Invasion series.
Signi Beta is an M-class planet ideal for farming. The Federation wants Signi Beta, but the Klinglon Empire has the stronger claim. Captain Kirk hates to lose the planet, especially to his old adversary, Commander Kor. Their mutal antagonism turns into an uneasy alliance, however, when yet another alien fleet attacks both the Klingons and the Enterprise. Now Kirk and Kor must rely on each other's honor - or none of them may survive to wage their war again.