Murder on the Gringo Trail

It was supposed to be the trip of a lifetime. It was the trip of a lifetime, but it didn't work out exactly as planned... They were going to travel again, in their fiftieth year, reprising two different trips they had taken in their twentieth and twenty-fifth years, respectively. They would go to... Bolivia and Peru, but not without experiencing New Orleans again. Thus starts our adventure, where we learn about Peter and Ax, boyhood friends who grew old together, and their adventures on the road.