This book is very unoriginal. The author clearly is a fan of vampires as this plot is very similar to that of Twilight. In fact,“The Girl I Knew” is written in an almost identical writing style of Stephanie Meyers. Also, it is very predictable. I would say it's a mix of 50 Shades and Twilight. I would not recommend this book to any young adult or anyone. This book deserves 0 stars.