Jape Waltzer is an outlaw who takes it upon himself to help Davy. He lives in a shack in the hills of North Dakota with his “daughter,” Sara, whom he bought from her father and intends to marry when she's old enough. Mr. Waltzer is very engaging but extremely dangerous. He often seems insane and he is insistent that the world is going to end, though it's indicated that he doesn't believe in God. Reuben never learns why Mr. Waltzer is running from the law in the first place, and the novel implies that Waltzer kills Mr. Andreeson for trying to hunt Davy down. Mr. Waltzer remains a mystery, and he makes his final appearance in the novel when, after Davy helps Sara escape from the forced marriage he has planned for her, he shoots Reuben and Jeremiah, killing Jeremiah. In Swede's epic poem about the family’s journey to find Davy, Mr. Waltzer becomes the villainous character Valdez.