Borderland - Rhiannon Lassiter

Making friends doesn't come easily to newcomer Zo. She's always been the outsider, watching the 'in' crowd from afar and longing to be part of it. So when beautiful, popular Laura Harrell notices her, Zo is desperate to impress. Soon Laura lets Zo into a secret. In the woods behind her house there is a hidden doorway to another world; a world Laura and her brother Alex treat as their playground.But Zo quickly realizes that what's going on in the city of Shattershard is no game. War is about to break out-and it appears that Alex is supplying weaponry from their own world. After a chilling warning to away from Laura, Zo is forced to question Laura's true reasons for bringing her to Shattershard.Caught between the opposing sides, Zo no longer knows where her loyalties lie or who to trust. As her old life slips further away, she is starting to see that getting into Shattershard was easy . . . but getting out may not be possible.