Okay that was intense! And by intense I mean utterly tragic. I don't know what to say. I feel really sad and frustrated right now. I know that it was somehow a "happy" ending in a weird non-comprehensible way but not for me if I'm being completely honest. 
 Spoilers ahead, so be warned! 
 I always had a premonition of what was to come and all along I thought it would end tragically for Jem. But oh my god. I never thought I would cry the whole time in the ending. I didn't cry for Tessa. Nor did I cry for the tragic triangle love story between Jem, Will and Tessa. I cried my eyes out for Jem and Wills friendship. 
 I saw a lot of talk about Team Jem or Team Will. But who cares about the love story?! Like seriously, Tessa is the only one who you could most likely say had a happy ending! She gets her time with both of them and I am happy for her and I'm happy for Will and for Jem that they have time with their true love. 
 But Jem and Will they don't get to spend time together as it was before and I'm really devastated about that. The Infernal Devices always felt for me like a book about bonds beyond friendship or family. It's about something so special between Jem and Will and it is frustrating to only see the love triangle in this books. 
 Oh shush! I have to stop moaning about it and move forward. 
 The Infernal Devices was an exceptional series and I loved them all the way. Again you did a good job Cassandra Clare, even if you ripped my heart out considering Jem and Will!