Jaime Ceballos is a leading character in The Good Conscience and appears in Where the Air Is Clear as the fiance of Bettina Regules, the financier who completes the ruin of Federico Robles. The Mexican Revolution and its betrayal is also a theme in Where the Air Is Clear and forms the background of The Old Gringo (1985; see separate entry). Fuentes has said that his proposed trilogy which has begun with The Campaign (1991; see separate entry) will culminate in the Revolution.