O 'Henry's novel, The Gift of the Magi, tells the story of a rich widow, Magi, who wanted to give her mother a surprise and decided to give her a priceless gift. When she gave the gift to her mother, her mother told her that the gift was the inheritance of her late husband, who had promised to leave his property to her sister before his death. Maggie was confused and disappointed. She couldn't understand why she couldn't have what she wanted. The ending of the story was a reversal that revealed that Maggie's real purpose was to fight for more property for herself rather than to inherit her husband's property. This novel is considered one of O 'Henry's masterpieces. It is famous for its humor, clever plot and unexpected ending.