This is a really fascinating story in the vein of all the best survival books. What differentiates it from most survival stories is its setting in the Sahara, not an icy waste, and the date it occurred - 1815.
The treatment of the shipwrecked sailors is nothing short of shocking by today's standards. They were treated as a commodity to be traded, and yet this is eerily similar to the treatment doled out to black africans by white slavers. In an uncomfortable table-turning, we come to appreciate some of the injustices doled out by humanity.
The fact that some of the sailors survived is nothing short of miraculous, and fortitude of the ship's captain, Riley is the key to this. There is no doubt that those who escaped were extremely fortunate and this is what keeps this book gripping. The other fascinating element of the book is the attitude of the sailors to their captors. Some captors were better than others, and the blinkered viewpoint of sailors to start with was considerably broadened by their experiences, particularly the strength and commitment to some of the locals to freeing them.
Read this book and enjoy - and be grateful you're not enslaved in the Sahara.