Mark Twain devises a flowing geographical space in his novel The Adventures of Huckleberry Finn.The two protagonists,Huck and Jim,are constantly moving between the ideal space and the real space.As the"mother river"of the US with significant implications,the Mississippi River serves as a time-space tunnel between the reality and the ideal,perfectly connecting typical spaces represented by"home","town","Jackson's island"and"raft".According to human geography,a meaningless space can be transformed into a meaningful"place"under the influence of personal experience.Thus,in the flow of time and space,Huck and Jim endow these spaces with the connotation of"home".While revealing the pursuit of freedom and equality,their spatial flow represents the progression of young America towards maturity.