This third book in the Ministry of Peculiar Occurrences series was a fun addition to the series, although I must admit that like other reviewers, I didn't like this one quite as much as the first two.
In this adventure, Eliza and Wellington set off for America to provide support to their sister office, the Office of the Supernatural and Metaphysical (OSM), for a case they are currently working. The Ministry's Doctor Sound assumes this will keep his two agents out of trouble for a little while since their last case got them both in a bit of hot water with the higher ups, but what starts out simply as mysteriously disappearing ships turns into something much, much bigger, and the agents are fighting for their lives.
Because Eliza and Welly spent a lot of time working with their American counterparts and not with each other, the spark that makes these characters so lovable was missing throughout a lot of this book. Eliza and Wild Bill just didn't jive in the same way Eliza and Wellington do. The same held true for Wellington and the American librarian Felicity. Despite this, everything worked out quite well in the end for the pair, and Eliza and Wellington actually made significant progress in their burgeoning relationship.
The series as a whole is wonderfully steampunk, with all manner of gadgets and gizmos an integral part of the story. If you love steampunk and secret agents, I strongly recommend you check this series out.