According to the description, I recommend Heart of the Swarm, a sci-fi novel about interstellar civilizations. The novel told the story of a survivor who gained the faith of the Zerg and established a Zerg world that dominated the galaxy for revenge. In this story, the Zerg were the main characters. The story of the Zerg and Protoss was also involved, and there was also the story line of the Zerg who betrayed the Protoss. I hope you like my recommendation. Muah ~