It is now generally agreed that in Dombey and Son, “the first masterpiece of Dickens' maturity,” Dickens solved the structural problems of the serial novel. There was, he discovered, “no insuperable obstacle to writing, barely ahead of its publication in monthly instalments complete in themselves, a novel with a well-defined purpose worked out by such an ‘artfully interwoven or ingeniously complicated plot’ as he had once felt that he must eschew.” Dickens' “artfully interwoven” plot structure, similarly, is now recognized to be founded on a highly ramified system of analogies, contrasts, and variations in action and character of what is essentially a single, simple thematic idea, supported and colored by a complex body of inter-related symbols.