Read it through once

The direction that I took was not that in which my old home lay, nor that in which we had pursued the convicts. My back was turned towards the distant Hulks as I walked on, and, though I could see the old lights away on the spits of sand, I saw them over my shoulder. I knew the limekiln as well as I knew the old Battery, but they were miles apart; so that, if a light had been burning at each point that night, there would have been a long strip of the blank horizon between the two bright specks.