currency book

Keiran''''s brother disappeared through a bright flashing light when he was younger. Years later, trapped in the inferno of a castle under siege, his only escape is rushing towards a similar light. He finds himself in a cold dark prison cell. His captures are aliens that kidnap lesser beings and force them to fight in an arena for their amusement. Those that show promise are injected with nanobots to create stronger combatants for more entertaining games. How will he get back home, and more important. Is his brother still alive?