About six months after they assisted Jasper in America, Finley, Sam, Emily, and Griffin are back in London, and they are still helping out their country in secret. Everything seems to be going fine; Sam and Emily are finally admitting their feelings for each other and Finley and Griffin are realizing theirs. However, when Emily is kidnapped under their own roof, they suspect the worst - that the Machinist is back. With everyone worrying about Emily, only Finley makes time to try and help Griffin with whatever he is facing. He won’t speak about it to anyone, and Finley is definitely no exception. Will Finley be able to help Griffin, and will the gang find Emily and stop the Machinist before it’s too late?
Kady Cross has written another amazing book in The Steampunk Chronicles, and I sincerely hope that she has another one coming. The characters felt realistic; I could connect to their emotions, which were well written. The storyline was amazing, and it connected well to the two previous books in the series. I recommend this book to girls aged 15 and up.