The 35-year-old actor has put together an adventure-thriller-story called 'American Drifter' based on a dream he had, reported Us magazine.
"American Drifter's romance was inspired by a dream I had. The dream had played out so vividly, as if I was a fly on the wall watching this tale go down. Also, at that time, I had been searching for a story that would resonate with the youth of the world in a way that would make us feel the light and excitement for adventure," Murray said.
The novel, which isn't set for release until next year, follows the story of an American soldier backpacking through Brazil.