OK now why would a successful young academic who has written two books and numerous articles on her subject abandon her career just as the new Oxford semester is coming up? She's an Oxford don for goodness sake!
It's actually quite a good read but there are inconsistencies and at least one major error - J S Bach did not write any cello concerti, he wrote a set of cello suites which are very well known but it was his son, C P E Bach, who wrote the concerti. However in referring to Bach you usually mean J S. I thought the lack of research there a little odd, and Diana seemed not to know some facts that you would expect a historian of her apparent calibre to know considering the knights templar were right in her period of study. Most odd.
In the end though I did sit and read the book through but I certainly wouldn't give it top marks and the writing quality is not the best. Grammar is poor in places and I found myself shuddering at the odd split infinitive and other grammatical errata which the editor should have red-inked out!