an impatient rustling ; the swish of a tail ; a roar , half-muffled in the back of a throat . not to mention , darling had enough to cope with right now . another man turned from the darkness , looking straight at her , and she acted out of reflex . he frowned , as if my finally agreeing to the plan made him question what we were doing . we never know all the circumstances that make people do what they do , do we ? the smile that had tickled her mouth disappeared . 