The two men -- master and slave -- hadn't seen each other in more than a decade.

CNN: Slave master becomes an abolitionist

The slave master-turned-abolitionist made that journey from ignorance to enlightenment.

CNN: Slave master becomes an abolitionist

But one slave-master, a Tuareg chief called Arissal Ag Amdague, said last year that he would free all 7, 000 of the human chattels that he and his clansmen owned.

ECONOMIST: Niger decides not to free its slaves

Crusoe is on a slave-trading mission when his trip goes awry, and he seems to be Friday's master, not his equal.

WSJ: Fiction as Authentic as Fact | Robinson Crusoe | Daniel Defoe | Masterpiece by Danny Heitman