Traitors and Rebels — Phillip L. Truong

Jun Wu receives an invitation for a better life in a secret world inside the Earth's core. Chosen among ten people in the world to live in peace and harmony, he soon realizes his new life won't be so peaceful after all. Just months being an average citizen, he finds himself in the King's elite defense force known as 'Officials'. With amazing supernatural abilities acquired in this position, Jun and his team are out to recapture escaped prisoners from a bizarre jailbreak, their leader especially, who doesn't plan on robbing a few houses.... New friends turn to help from around the corner to assist these Officials in capturing the lost peace of this great world, or lose it forever.