Disclaimer: Harper Teen provided a free digital ARC of this book for review purposes. 
 Sofia and Annabelle lost their parents at a young age, and now live in a school for gifted children (in a Xavier kind of way). Sofia has incredible instincts and can pick winning stocks or tell whether a gun is loaded. Annabelle, though blind, gets visions of the future. But when Sofia is trained as an assassin, she begins to crumble. Annabelle knows that only leaving the school will save Sofia--but Annabelle can't go with her, and Sofia won't leave without her. 
 Mind Games gets off to a very shaky start, so shaky that I almost didn't finish it. Only the fact that I was already halfway through and it's not a very long book kept me going in an attempt to give it as fair a review as possible. The story is told in first person, switching between Sofia's (Fia) and Annie's POVs. Background for the story is given in chapter-long flashbacks, also switching between Fia and Annie. The flashbacks start seven years ago, when the girls' parents died in a car crash, and work their way up to about three months before the main action starts, while the main action covers a week or so. The problem is that the information in the flashbacks was absolutely necessary for me to connect to the girls in any way (and even by the end of the book I didn't connect with Annie at all). So until the first major incident in Fia's life in the flashbacks, which appears about halfway through the books, I had no frame of reference for why Fia was acting the way she did or why everyone was so scared of her. The main action chapters barely reference the flashback chapters at all, so there's no foreshadowing or promise that we'll learn anything until the necessary flashback chapter appears. 
 Honestly, I was way more interested in the bigger picture stuff than Fia and Annie. There's a whole conspiracy thing going on involving scientists and big business people and possibly the government that we only barely touch in this book (though the ending makes it seem like we're headed there in a sequel). I wanted to know more about the neuroscience and what the owner of the school was really up to, but all we find out is that he's up to more than just the school and assassinations he's been sending Fia on. 
 Mind Games has a fascinating premise but just didn't deliver on it.