Starting with a rush-hour subway ride to South Station in Boston to catch the Lake Shore Limited to Chicago, Theroux winds up on the poky, wandering Old Patagonian Express steam engine, which comes to a halt in a desolate land of cracked hills and thorn bushes. But with Theroux the view along the way is what matters: the monologuing Mr. Thornberry in Costa Rica, the bogus priest of Cali, and the blind Jorge Luis Borges, who delights in having Theroux read Robert Louis Stevenson to him.