As several others have noted, this read more like a Holmes and Watson adventure, only with less character development or wit. I slogged through the first third, waiting for something to happen. Things briefly became lively and interesting, then nothing for another long while. There was potential here, but it wasn't developed. By the end of the book, I didn't care any more. The book just didn't work for me, although the historical tidbits scattered throughout the book were terrific. Evidence of of some nice research. Not much to hang your hat on there, though.