Another book that I truly enjoyed. It was placed in England at the time of Jack the Ripper. It almost spoiled the whole "Jack the Ripper" mystery, but it didn't quite. It was interesting to see the way the main detective tried to start a forensic department in Scotland Yard, and it was interesting to see what kinds of difficulties there were in solving crimes without any of the tools that we just take for granted nowadays.
It was written from two angles that it eventually joined. Both angles were presented believably, and the total story went together well. It has raised questions to me about how much the time. Actually had to do with development of forensic research and whether any aspects of the story are actually true. I like the fact that there is additional research suggested :-).
Excellent book! And it tied in well with the latest book to which I listened, which was situated about five years later! And I learned from the book that the "Jack the Ripper" crimes are considered the "Whitechapel murders", which I would never have known, and which was useful for the audiobook :-)