The Bridge (Southside novels #1)

The City is divided. The bridges gated. In Southside, the hostiles live in squalor and desperation, waiting for a chance to overrun the residents of Cityside.
Nik is still in high school but is destined for a great career with the Internal Security and Intelligence Services, the brains behind the war. But when ISIS comes recruiting, everyone is shocked when he isn't chosen. There must be an explanation, but no one will talk about it. Then the school is bombed and the hostiles take the bridges. Buildings are burning, kids are dead, and the hostiles have kidnapped Sol. Now ISIS is hunting for Nik.
But Nik is on the run, with Sol's sister Fyffe and ISIS hot on their trail. They cross the bridge in search of Sol, and Nik finds answers to questions he had never dared to ask.
"The Bridge" is a gritty adventure set in a future world where fear of outsiders pervades everything. A heart-stopping novel about friendship, identity, and courage from an exciting new voice in young-adult fiction.