what makes a story walk?

still stuck with murder in the Gun Room - it seems to have so much potential, but is developing a very splintered story map, full of engrossing visual details, but which refuses to take direction - maybe I should have been a film writer
it is quite discouraging, but interesting - what makes a story 'walk'?
meanwhile I have had note cards made from the illustrations for Elephant Blue, they are beautiful and have solved my holiday card problem - this year I am sending out the camel , "I love the velvet brown of camel, yellow, bronze and tawney, the camel colors of the sands.." with the message "peace in the desert"
five days to contemplate, relax and read, something may come