Sacrifices of War
Sacrifices of War is a Pocket TOS novel – the third and final novel in the Errand of Fury series – written by Kevin Ryan. Published by Pocket Books, it was first released in .

Summary 
From the book jacket
Poised on the verge of interstellar war, Captain Kirk's last best hope that the Federation can stop the Klingons is the people of Organia, avowed pacifists.

Forced to disguise themselves as interstellar traders, Captain Kirk and Mister Spock are trapped on the primitive world of Organia as Klingon Defense Forces occupy the planet. Determined to make the Organians see that they need not bow to oppression, the Starfleet officers sabotage Klingon materiel. In retaliation, the Klingon captain, Kor, executes many Organians. Unconcerned, the Council of Elders begs Kirk and Spock to stop the violence.

While in deep space the forces of Starfleet and the Klingon Empire scramble to position their fleets for the first onslaught of what could be a long and deadly war.

Background information 
 The novel was originally scheduled for release in ; it was delayed due to unforeseen circumstances.
 The cover art had to be altered (from preview covers posted online and in catalogs) when the depiction of the late Peter Brocco, who had played the Organian Claymare in  could not be approved through his estate. The cover artist superimposed an Organian glow over the image. 
 In addition, a final change added credit to Gene L. Coon as writer of "Errand of Mercy", as the novel adapts the events of the episode.

External link 
 

Novels