Fritz Leiber 
Big Time [EPUB ebook] 

The Big Time (1958) is a short science fiction novel by American writer Fritz Leiber. Awarded the Hugo Award during 1958. The storyline features members of one of two factions, both capable of time travel, engaged in a long-term conflict called "The Change War". Their method of battle involves changing the outcomes of events throughout history (temporal war). The two opposing groups are nicknamed the Spiders and the Snakes after their respective sponsors. The narrator of the novel is Greta, a young human female employed at a Recuperation Station where soldiers recover from battles. Greta is an Entertainer: part prostitute, part nurse, part psychotherapist. However, other characters narrate parts of the story in lengthy monologues about their experiences and opinions as they visit the spider-staffed facility.