This research focuses on the journey of Magnus Chase's character as the mythical hero in The Sword of Summer novel by Rick Riordan. This research has two purposes. The first is to identify the stages of Monomyth that appear in the journey of Magnus Chase's character in The Sword of Summer novel. The second is to identify kind of Mythoi of The Sword of Summer novel. The researcher applied Joseph Campbell's theory of Monomyth and Northrop Frye's theory of Mythoi to answer the research questions. There are two results of this research. First, Magnus Chase's character undergoes fifteen out of seventeen stages that proper with Campbell's Monomyth. These fifteen stages are The Call to Adventure, Refusal of the Call, Supernatural Aid, The Crossing...