Gravity had the promise and potential to provide a fired-up action packed read, but unfortunately fell flat in a lot of places. Ari has always known she’s going to go to great places; she’s legally born to be a commander and has been training nearly all her life to get there. Her life’s been practically set up for her, she will marry best friend and the president’s son Law and through her training the end is within her sights. But things come crashing down around her, when she soon discovers things aren’t as what they seem in her little planned out life.Gravity started out great with an interesting premise about Ari’s world being shared by two different species; Ancients and human, but the ancients aren’t obviously identifiable amongst humans, they have certain characteristics which may make them stand out from the rest but again ancients aren't normally the ones who want to stand out from amongst the crowd. The ancients first became in this world through mutual agreement, but now they’re clashing over what they’re doing here and it looks clear that there is no other way around but this is through a war.You would think that Ari would know whose side she’s on but after the curveball her classmate Jackson’s delivers, she’s not so sure. With her delving and learning more about the ancients, it looks like the people clearly on the wrong side here are her own.Not being a huge sci-fan I did find this story fascinating, learning about the ancients and waiting for Ari to make her decision, would she stand by her parents who had brought her up into this world or the ancients who were deemed the enemy? The pace was great too, but did fall quite flat in the middle that I found my attention wavering quite a lot. Also the romance which emerged which I was all for at the beginning, kind of fizzled out in my eyes after a while. I’m all for a cute romance, but the way one of the characters started behaving really began to get on my nerves. I’m glad the last 30% of the book did manage to capture my attention again, but by that point I’m not sure if it was enough to encourage me in picking up the next book.