Shadow War (Snyder)

Arthur is a young man looking forward to his senior year in high school. Everything changes the day his younger sister is attacked. Attacked not by a man, but something else. Something that will draw him into a conflict he does not understand. A war that has raged for centuries, over multiple dimensions. Fought by warriors thought to be simply myths/legends. All waiting for the one thing that could end the war. A Blocker.