I received a free copy of this book thanks to Netgalley and the publisher in exchange for an honest review, this has in no way impacted on my reivew. 
 Basically: This is the sequel to All Fall Down by the wonderful Ally Carter and just as the first book was one of favourite reads of 2015 this was one of my favourite reads of 2016. 
 In Depth: I'm going to be honest, I am a huge Ally Carter fan. If she realised a shopping list and it was published in the UK (or I could find somewhere that would ship it to me) I would buy it, read it and probably adore it and think it was the best thing ever. So just bare that in mind whilst reading this review (which is basically me fangirling okay). 
 The Plot: IF YOU HAVE NOT READ BOOK ONE READ BOOK ONE BEFORE YOU A) READ THIS BOOK AND B) READ THIS REVIEW. 
 This book is a continuation of the story from the first book, we pick up directly after Ms Chancellor has taken Grace down into the tunnels and literally picks up from there. I love books with this level of continuation, especially after a cliff hanger like that one (Ally Carter is an author who should not be allowed to do cliff hangers okay.) My only complaint was that I probably wouldn't have remembered the finer details for this scene had I not just reread the first book. (However, I had and it was a glorious thing.) I felt like the plot did continue on in a way that you didn't have to have just reread the previous book but it did feel a tiny bit of a shock initially. 
 See How They Run is as fast paced and exciting as All Fall Down with just as many plot twists and turns and brilliance. There's something fantastic about the pacing in these books, nothing happens to fast but you never get a chance to be bored either. There's something really nice about that, because whilst I love some of the slower less action based writing I am also aware that others don't. 
 Don't panic all the issues from the first book are addressed as well. For anyone whose wondering. 
 The Characters: Yes all my favourites are back and better than ever. It's so nice to see a writer who expands on her characters the way that Ally Carter does, it's something I love about her writing. Grace, our protagonist, is there and reminds us of why we should love a character like her. The world according to Grace reminds me of myself when I was that age, everything seemed black and white (as opposed to know where I would def sell my soul for money and sleep - and internet obvs.) 
 One of the characters who I was extremely excited about was Jamie (yes we finally meet Jamie). I felt like he was everything I wanted from his character and that made me one very pleased person. The elements I particularly liked was his protectiveness of Grace and the fact that he so blatantly loved her. There were some touching scenes between them and just yes. 
 The expansion of Megan, Lila, Noah, Rosie and Alexei also made me a very happy person. (Also the scarred man okay, i have a lot of love there too). The scenes and development of their characters did feel a little reminiscent of the relationships explored in Heist Society and I'd Tell You I Love You, But Then I'd Have to Kill You but at the same time that is one of the reasons that I fell in love with both of those series. The friendships and group dynamics are hugely important to me as a reader and I adore the way they're written. (so as far as I'm concerned 10/10). 
 (okay and i adore alexei and grace and then with added jamie and the whole plot of the book okay, this was like the greatest thing ever and i basically died of happiness. i'm still smiling about it now, like a moron). 
 My Thoughts: Would I recommend this book. Yes, in a heartbeat. I adore this series, I think it's brilliantly written and I cannot wait until the third book comes out (like I have the release date on my calendar and everything, don't judge me too harshly). However, at the same time I recognise that these books are not for everyone, if you do not like Jennifer Lynn Barnes, Maggie Hall, Rachel Hawkins, and Rick Riordan then I wouldn't recommend these books to you, there are elements of a similar writing style. But if you love these authors, then check this series out for sure!