Don't Look Back by Jennifer L. Armentrout

Samantha was an iconic it girl. Everyone loved her, everyone feared her, everyone wanted to be her. But she loses it all when she and her best friend Cassie go missing for several days and Samantha returns without a single memory. Now, Sam flounders through her once elite life style, struggling to find a place to belong amidst the rivalries and fake smiles. With a second chance to change her life, Sam must define who are her true friends, and who's just aiming for a shot in the limelight. As if dealing with the drama wasn't enough, horrific flashbacks to the nights she was missing forces Sam to remember, Cassie is still missing, and her buried memories could be the only thing keeping Sam safe.
I really enjoyed this book, the themes of friendship and romance were enjoyable additions without dominating the plot. The novel wasn't all goreish with murder like I suspected, so it was a considerably fun read. Don't Look Back was more of a mystery than a dark, horror book, and it's the kind where the killer has reasons and such, not just being an enraged psychopath. I didn't even suspect who the killer was, although I wouldn't deem the ending to be a shocking twist. The novel wasn't like a roller coaster of emotions, it neatly followed the typical arc of a mystery novel without being boring. Armentrout also wraps up her book very nicely and straightforward. Many authors attempt to quickly wrap up the falling action part of the plotline but it ends up rather rushed and messy. Armentrout manages to finish cleanly without leaving readers feeling cut off, which I greatly appreciated.
I'd strongly recommend this to people who enjoyed mysteries at a young age and which to continue reading similar books even as a young adult. I rate the book 8.5/10
~Mushu