In this book Gabry and her friends cross the barrier to the other side of the town, the one they're not supposed to go to. It's a dangerous and mystery place that you're not allowed to go because you can encounter a mudo seeking human flesh. But like every teen they want to discover anything, even if it's prohibited and could put their lives in danger.
Gabry stays behind talking with Catcher (the guy she likes). They end up kissing when suddenly they hear a scream. One of their friends gets bitten, it had been a great night, then all turned into chaos. Unfortunately for Gabry, Catcher also gets bitten. Gabry now knows that he will turn into a Mudo.
Catcher tells Gabry to leave before he turns into a Mudo, so Gabry leaves before the militia men come leaving behind her friends. The next day Gabry's mom tells her that her friends were caught at the other side of the barrier and that the town will decide on a punishment later that day. Gabry feels bad because she knows that she's supposed to be in the same situation that her friends are in. Their punishment is, being sent to the recruiters for 2 years and they will not be allowed to claim the honors that come from such service. They will not be able to enter the protected zones. Not after their service. Not ever.
Gabry feels lucky having to escape such punishment, she goes up to the cage and whispers to Cira her best friend and Catcher's sister. Cira asks her about her brother but Gabry doesn't know where he is. Cira tells her to go look for him and find him if not she will tell that Gabry was with them too.
Gabry has no other option than to go look for Catcher but she's taking a risk maybe Catcher is already a Mudo. She could get bitten.
This is a great book if you want to know what happens next then I recommend you to read it.