Books like Son of the Black Sword

After the War of the Gods, the demons were cast out and fell to the world. Mankind was nearly eradicated by the seemingly unstoppable beasts, until the gods sent the great hero, Ramrowan, to save them. He united the tribes, gave them magic, and drove the demons into the sea. Yet as centuries passed, Gods and demons became myth and legend, and the people no longer believed. The Age of Law began. Ashok Vadal has been chosen by a powerful ancient weapon to be its bearer. He is a Protector, the elite militant order of roving law enforcers. No one is more merciless in rooting out those who secretly practice the old ways. Everything is black or white, good or evil, until he discovers his entire life is a fraud. Ashok isn’t who he thinks he is, and when he finds himself on the wrong side of the law, the consequences lead to rebellion, war—and destruction.