Read it through once

Though the sky was dense with cloud, a diffused light from some fragment of a moon had hitherto helped them a little. But the moon had now sunk, the clouds seemed to settle almost on their heads, and the night grew as dark as a cave. However, they found their way along, keeping as much on the turf as possible that their tread might not resound, which it was easy to do, there being no hedge or fence of any kind. All around was open loneliness and black solitude, over which a stiff breeze blew.