Blade Children - Christopher (University of Washington Meek - Bog

"
A New Destiny is About to Unfold

Upon receiving mysterious books from their dying grandfather, thirteen-year-old Kie Kinsely, and his younger brother, Max, learn of an invisible war that has been ranging for over two thousand years. Accepting their place in this Ancient War as the Blade Children, the two brothers gain the ability to see angels and demons that roam the earth. Together, along with their Guardians, Kie and Max are sent to the Spiritual World by a Supernatural Force.

Both Worlds Are in the Balance

In order to return home, they must defeat a team of powerful demons who call themselves The Four Dark Angels of Heaven. These powerful beings, who fell during the Great Rebellion, have been given orders to destroy the Blade Children. Join the adventure of a lifetime through mysterious worlds as you experience ancient creatures and learn of a Powerful Creator"