Mr. Montefiore’s goal, he says, is to offer a comprehensive history of the Middle East since the dawn of the 20th century. Not all his stories are original, given the breadth of material he covers, but he enriches them with fascinating details ... Mr. Montefiore doesn’t play favorites, subjecting all his characters to scrutiny ... Mr. Montefiore’s muscular prose, blending highbrow erudition with blunt and occasionally vulgar humor, is indelible. The Cauldron is a triumph of blood-and-thunder narrative history.