This was quite a good read. The pacing was a little slow for my personal liking, but at the same time it didn't feel like a trudge to get through. A big part of the story – the clues surviving in The Frick for more than 50 years, under rugs, behind paintings, etc., however, felt implausible. I just don't believe that nobody ever moved anything around once the house was converted into a museum. The mystery itself was interesting, but nothing mind-blowing and the reveal didn't surprise me much.