Son of the Keeper Series3 books in series
Principles of Magic Publisher's Summary
Over 2,000 years ago, the Xandians were forced to flee their world by a horde made up of dark forces that had spread throughout the universes like a plague. The Xandian king and a handful of nobles stood alone on the wall against wave after wave of the horde forces as the last remnants of the Xandian people fled through a portal to the planet of Earth. They've been fighting and protecting this planet from being overrun by evil ever since.
The horde continues to grow stronger as the Xandians have gradually had their forces diminished. When their queen is killed, their last hope switches to the potential powers of an 11-year-old boy whom no one has told may be the greatest magical force of all time. The day comes quickly for him to embrace his birthright and fight to save not only his own people but all of the people of Earth and ultimately of the universe itself.