River of Blood (novel)
River of Blood is a Pocket TOS novel – the third and final novel in the Errand of Vengeance series – written by Kevin Ryan. Published by Pocket Books, it was first released in .

Summary 
From the back cover
Every person has a story, and those who are lucky enough to share the voyages of Captain James T. Kirk aboard the Starship Enterprise have stories unlike anyone else's. Some live, some die, but even those who serve below deck sometimes make all the difference in the universe!

The news from Starfleet Command is grim: a full-scale war against the Klingon Empire is coming, a war that the Federation may not be able to win. In anticipation of a monumental conflict, the USS Enterprise is assigned to guard a vital starbase located perilously close to Klingon space.

But even Kirk's mission brings him into a tense confrontation with an invading Klingon battle cruiser, an equally deadly menace lurks within the ranks of his own crew: Klingon infiltrator agents, posing as Starfleet officers and sworn to destroy the enemies of the Empire – even at the cost of their own honor!

Characters 
 Captain James T. Kirk
 Lt. Commander Spock
 Lt. Commander Leonard McCoy
 Lt. Commander Montgomery "Scotty" Scott
 Lieutenant Hikaru Sulu
 Lieutenant Nyota Uhura
 Nurse Christine Chapel

References 
Benitez; Blade of the Bat'leth; Earthers; ; Fuller, Sam; Gorath; ; Kahless; Karel; Klingon Empire; Klingon High Command; Klingons; Leslie; Mathews; Orions; Rayburn; Sobel; Sto-vo-kor; System 1324; System 7348; ; universal translator

External link 
 

Novels