In the dystopian world that Tethered Twins takes place in, everyone has a twin they are connected to forever. If your twin experiences a heightened emotion, you do, too. If your twin dies, you die, too. At least, that's all Emmie had known until the day her twin died...and she didn't. From then on, her life starts spiraling and questions come up that she can't find answers for. Why does the terrorist group known as The Deck want multimillionaire Tobias? Why does her make-up artist friend have so many useful connections that have nothing to do with the makeup industry? And most importantly, how and why is she alive when her twin isn't?

I would give this a solid three stars. There is a lot of mystery in this book that is well played out, and I enjoyed that. It kept me interested and curious. I liked the idea of how the world would work if everyone had a twin they were connected to and what issues people would want to resolve because of that. However, the narrative in this book shifts frequently, not only from character to character, but from first to third person point of view as well and I didn't like that. It made the story confusing for the first several chapters. Some of the secondary characters were flat and predictable. I felt more could have been done with them. However, Emmie is a nice main character, and I did enjoy her friendship with Grace. I liked how both of their characters developed over the novel.

I somehow got the impression before I read it that it was supposed to be a YA dystopian, but it's adult. The content isn't excessively adult, so it would still be fine for YA readers, but I think adults would enjoy it more. Overall, it just didn't have the things I personally enjoyed in a book, but I think people who are more into adult dystopian with a little sci-fi and a lot of action would like it more than I did. I think this is supposed to be a trilogy and while I didn't like it enough to read a sequel, I believe there is a good audience of people who will love it. I received a free ebook copy through a LibraryThing member giveaway.