After Tom Sawyer, from the middle of 1870s to 1880s,Mark Twain wrote a lot of works which later became his masterpieces. I should say that this period is a climax of Mark Twain's writing life. For example, the famous novel "the prince and pauper" which focus on the cruel law working for the ruler; "life on Mississippi" which praised working people emotionally and expressed his yearning for free life and the most important novel, his master work "Adventures of Huckleberry Finn" are all produced in this period.

Actually, these are closely related to the society situation at that time. From that time, class struggle became more and more intense. Worker's strike blossomed here and there. But most of them were suppressed cruelly. ///Many workers were sentenced to death with fabricate crimes. / Mark Twain, as a thinker and soldier[["justice fighter]], of course would write sth to reveal...