Heralds are the most powerful of all angels, secretive and feared, created for a single purpose. Only those most courageous and worthy earn a place within the elite choir, and only by breaking ancient oaths held sacred can the honor be stripped. It's a punishment that hasn't been imposed in over two-thousand years, until a single reckless act sets off a firestorm, threatening to consume all creation. Rise Hawke never suspected she'd been marked to play a role in the deadly events unfolding in the spiritual realm. Independent and resistant to authority, she isn't thrilled when she meets...