Have you ever wondered how to travel with your favorite pet in a huge tropical country where footloose foreigners are suspect? Author Ben Batchelder abandoned a cozy corporate career and, instead of returning to the U.S. like a normal re-pat, moved deep into the interior of Brazil. Here, he drives his two-wheel drive station wagon into the Amazon, on the notoriously dangerous Belem-Brasilia highway, and back along Brazil's endless Atlantic Coast, on roads few if any Brazilians brave. Hence the need for such a ferocious breed as Labrador: for protection. Along the way, humorous encounters with...