It's strange that this is the last book in this trilogy although not the last book in this world. I like that all the books in The Mortal Instruments and The Infernal Devices intersect and cross, and with Clockwork Princess a lot more storylines and character connections are made apparent. The characters in TID are ancestors to the characters in TMI and I like seeing the similar traits that we'll see later. 
 I will say that the overall story of Mortmain and his automaton army is overshadowed by the love triangle between Jem, Tessa, and Will. I think that story took center stage. It's pretty predictable how everything with Mortmain will go. But I know there are a lot (if not all) fans / readers of this series out there wanting to know "who Tessa will end up with in the end, especially with Jem's illness". 
 Of course with this being the last book in the trilogy Clare answers that question. It's all in the way she answers that question. If I had one word to describe Clockwork Princess it would be: bittersweet. I found the overall story to be written quite well and lovely, yet there were definite moments of sadness which almost overshadowed the happier moments (although they are there, just maybe with a more somber tone than the previous books in the trilogy). A lot has happened to our characters. They have gone through a lot and have had to face a lot as well. It only makes what they strive for in the end, and the decisions they make, that much more strong. 
 I have to say that I feel a little at odds with how Clare chose to end the series, but on the other hand I can't think of a different way for her to do it. Looking at the book from a peripheral point of view what she chose to do I would have called gratuitous and cowardly, almost as if she were afraid of making a definitive statement one way or the other and letting the characters off too easily. But when I read the story I realize that none of the characters got off easily. They all had to make sacrifices and live through them, so by the end, they were all deserving of what happiness Clare deemed to give them. I was glad that the story turned out the way it did. She certainly put a different spin on the love triangle and while I would hate if it became a new trend in the genre, it works here. 
 Clockwork Princess really makes me want to go back (or forward?) and draw the connecting lines between the two series and not just with last names, but with artifacts as well and places. I look forward to other things that Clare writes in the Shadowhunter world in the future. Until Then!