My reviewRating: 3 of 5 stars
What I found most interesting about this book was the setting: a motor car exhibition in the late 1890s. This allows the authors to talk a lot about the early development of the motor car, including some fascinating details about the relative benefits and costs of steam, electric, and gasoline powered cars. Given that we're trying to wean ourselves off of oil today, it was neat to hear some of the reasoning behind choosing gasoline engines in the first place.
The mystery itself ends a bit oddly, with an abrupt, less-than-pat conclusion. I was surprised by this, but it did make a refreshing change from the usual happy ending. The authors also spend some time developing tension in the Kate/Sir Charles relationship, which I am sure will continue in the rest of the series.