Read it through once

At seven in the morning we reached Hannibal, Missouri, where my boyhood was spent. I had had a glimpse of it fifteen years ago, and another glimpse six years earlier, but both were so brief that they hardly counted. The only notion of the town that remained in my mind was the memory of it as I had known it when I first quitted it twenty-nine years ago. That picture of it was still as clear and vivid to me as a photograph. I stepped ashore with the feeling of one who returns out of a dead-and-gone generation. I had a sort of realizing sense of what the Bastille prisoners must have felt when they used to come out and look upon Paris after years of captivity, and note how curiously the familiar and the strange were mixed together before them. I saw the new houses-- saw them plainly enough--but they did not affect the older picture in my mind, for through their solid bricks and mortar I saw the vanished houses, which had formerly stood there, with perfect distinctness.