Named after the Egyptian god of scribes, Mr. Thoth is an old man who lives at Vesperhaven House, a San Narciso retirement home owned by . While visiting all of Inverarity’s companies and properties, runs into Thoth by chance, and Thoth tells her a story about his racist frontiersman grandfather, a -carrier, delightfully slaughtering a group of bandits with “a Mexican name” and stealing a gold ring with the muted post horn symbol on it. Oedipa assumes that this group must be , and Thoth’s explanation is consistent with ’s suggestion that the members of Tristero immigrated to the United States in 1849 and continued carrying mail while disguising themselves as Mexicans and Native Americans in the American West. However, Oedipa never decides whether or not to believe this story.