Valerian and Laureline: The Order of the Stones (Valerian and Laureline #20)

On board Captain Singh’a Rough’a’s vessel, Valerian and Laureline finally make it to the Great Void, the unexplored empty space right at the very end of the universe. During their ongoing search for the lost Earth, the pair comes face to face with the Wolochs, a race of terrifying stone monsters.