Terra presents itself as a series of connected vignettes written by the author’s great grandfather, Henry Lang, who was raised in Luxembourg during the tumultuous nineteenth-century when that country came under the rule of one country after another—all the disruption supposedly driving Henry to Buffalo, New York, where he penned these stories in Moselfrankisch, which Gregor then had translated. They tell an alternate history of a group called The Midianites, who have a chance to join with Moses and become part of God’s chosen people, and later to accept the teaching of Christ, but resist (for the most part) choosing, instead, to stubbornly measure themselves by the standards of humanity, rejecting romantic variants of Nietzscheanism for a more humble dedication to work. Stories are told within stories, allegories whose meaning is hidden only by the easily deciphered code of giving a character the name of a virtue written backwards—so that Layol becomes a hero, and Reldi a villain. For all that the book threatens to become overly didactic, Birren makes it involving by never forgetting that his characters are characters first and adding little grace notes that make the story come feel true. The point is not to imagine a perfect utopia, but instead pose the struggles of the Midianites as a model for humans: that their focus should be on work and helping one another; that religion leads to extremism and hierarchy; that even with everyone working hard, humans will be consumed by passions at times, and make mistakes, and go to war, and all the rest: the best we can hope is to temper those tendencies and get back on track when civilization’s run off the rails. It’s an interesting and unexpected book, one that suggests Birren, fulfilled by his work on color, had more he wanted to say.