Whoa... I was not expecting this book. Unsure, suffering from insomnia at 2 am when I should have been sleeping, I picked a book at random from my Kindle because nothing was appealing to me. I queued up Good & was gone. This book sat in my Kindle for months on months, with great regret. 
 Good could be flawed, it could be riddled with errors, but hell if I noticed since I was so caught up in the story. I read the book from first to last page with nary a potty break. 
 I still don't know what to think of the story. Was it YA? She was 17 & still in high school. Was it NA? Because of the content? Was it mystery? Because we still don't know about Mark's past? Hell, was it erotica? Because the sex scenes were extremely explicit with a BDSM twist. 
 & then there was a cliffhanger. So I find myself at almost 8 am, without a lick of sleep, downloading the next book when I thought it was a standalone. My bad, but good for my entertainment ;) Hell on my sleep, though.