A fun mechanical mystery. A love a good clue trail, particularly one that has gone cold over time, and Horten was an engaging character to tag along with. The British, old-fashioned(ish) feel of the setting was also fun, and fit in perfectly with the history mystery revolving around magicians, disappearances, and clockwork secrets. However, I wish the ending hadn't been supernatural - I thought the emphasis on the mechanical would have led to a plausible explanation, but was disappointed by a sudden dose of time travel. The first in a series, future titles seem like they will continue to include a magical element, so I'm not sure I'll keep reading. It would be fun to spend more time with Horten and the triplets in that quaint little town - I'm just not sure I'm interested in following them anywhere else.