St. Clair's last three novels comprise a loose trilogy, all having in common a near-future setting along the coast of Northern California, and elements of Wicca. In "The Dolphins of Altair" (1967), dolphins and three human compatriots stage a war on mankind by creating earthquakes and polar melting. In "The Shadow People" (1969), a young male narrator in Berkeley descends into a mysterious underworld to rescue his abducted girlfriend. "The Dancers of Noyo" (1973) draws on Pomo lore as a young male narrator in a California largely depopulated by plague goes on a "Grail Journey" along Highway 101. In these last two novels, the narrator's quest climaxes in an experience of transcendent enlightenment.