In the city of San Agustín de Tango, the banal is hard to tell from the bizarre. In a single day, a man is guillotined for preaching the intellectual pleasures of sex; an ostrich in a zoo, reversing roles, devours a lion; and a man, while urinating, goes bungee jumping through time itself—and manages to escape. Or does he? Witness the weird machinery of Yesterday, where the Chilean master Juan Emar deploys irony, digression, and giddy repetitions to ratchet up narrative tension again and again and again, in this thrilling whirlwind of the ecstatically unexpected—all wed to the happiest marriage of any novel, ever.…