A solid mystery and a fun seasonal read for Downton Abbey fans. I enjoyed the historical setting: New York in 1907, just before the ball will be dropped on New Year's Eve in Times Square for the first time. I did find the main character mildly annoying at times, and I also felt like her mysterious "employer", Mr. X, was an unneeded distraction, although perhaps I'd feel differently if I'd read the first volumes in the series. This falls in a middle category for me: while I won't run out and read all of the others in the series, I'll definitely pick up any that cross my path in the future, if for no other reason than for the intriguing period details Noble weaves into her story.
Review based on a prepub copy received through NetGalley.