Strange events provide an undercurrent of tension in The Chichi Hoohoo Bogeyman. Three Indian girls who are cousins encounter a weird creature while secretly exploring an old fort on the South Dakota prairie. Playfully, they name it the chichi hoohoo bogeyman—after the Sioux, Hopi, and white figures used to frighten children. They are reminded of nerve-racking occurrences at home, perhaps driven by spirits. The most rebellious of the girls disappears, and the mystery of the chichi hoohoo bogeyman comes to light.