Crystal Keepers (Five Kingdoms, #3)

Cole Randolph is trapped in a world where magic is powerful and dreams are real. He found his friend Dalton and has survived the first two kingdoms of the Outskirts. But none of that has prepared him for the magnetic highways and robotic bounty hunters of Zeropolis.

Ruled by Abram Trench, the one Grand Shaper who stayed loyal to the evil High King, the government of Zeropolis uses advanced technologies to keep tight control. Luckily, the resistance in Zeropolis is anchored by the Crystal Keepers, a group of young rebels with unique weapons.

On the run from the High King's secret police, Cole and Dalton venture to find more of their lost friends and help their new friend, Mira, locate her sister Constance. But as their enemies ruthlessly dismantle the resistance, time runs out for Cole to uncover the secrets behind the Zeropolitan government and unravel the mystery of who helped the High King steal his daughter's powers. Can Cole fix The Outskirts magic, or will he be stranded forever?