一个和宋辽三分天下、与宋金三足鼎立的王朝，为什么独在史书中缺席？一个雄踞西北、对垒中原数世纪的强悍民族，为什么像雪一样融化得无影无踪？一代天骄成古思汗为什么要从种族和文化上彻底把西夏从历史长河中清除出去？长篇历史小说《西夏》给了我们答案。(Why is the dynasty that once dominated ancient China with Song and Liao States and once was among the three most powerful kingdoms together with Song and Jin States absent from historical records? Why did such a strong and powerful nation that stood firmly in the Northwest against Central Plain for several centuries melt away like the snow? Why did Genghis Khan completely eliminate the race and culture of Western Xia regime from the history? Western Xia Regime, a long historical novel, will give you all the answers. )