When Dickens was nineteen years old, he wrote a poem for Maria Beadnell, the young woman he wished to marry. The poem imagined Maria as a welcoming landlady offering lodgings to let. Almost forty years later, Dickens died, leaving his final novel unfinished - in its last scene, another landlady, Mrs Tope, sets breakfast down for her enigmatic lodger. These kinds of characters are everywhere in Dickens's writing. Charles Dickens and the Properties...