The Crook with a Great Soul. "The Seven Ordeals of Count Cagliostro: The Greatest Enchanter of the Eighteenth Century" by Iain McCalman. [review]
You haven't heard of Count Cagliostro? Well, chances are, if HarperCollins has anything to do with it, you will. This book is likely to ensure that the enchanter casts his spell on a new audience. For it is an extraordinary tale.