A story of two extraordinary men and the punishments they put themselves through to map out areas of Africa.

It was interesting how much it was a different time with different attitudes, and yet the drives and petty slights that make up character seem completely modern. I found it amusing when they talked of "discovering" a particular lake, but when they arrive there is already a well-established trading center. Obviously, they just meant "mapped out for white Europeans." Still, the hardships they endured while taking a difficult route were real, and would have been daunting for anyone.

It's not exactly a "thrilling adventure tale," but it is a fascinating look at two men accomplishing a perilous task and the toll they both paid.