Hideous Beauty - Kingdom Wars, #1

This world isn't what you think it is. Every day they slip across our borders to infiltrate our government, our schools, our neighborhoods. Homeland security can't stop them. The armed forces are no threat to them. Powerful and unseen, they cannot be stopped.. and they have been doing this for millennia. On what should have been the best day of his life, Pulitzer Prize-winning author Grant Austin learns of a plan to assassinate the president of the United States.
Every attempt to sound the alarm is thwarted, and Grant soon finds himself at the center of an even greater battle that predates time as he stands alone against ancient powers and unspeakable evil-evil that can only be described as a hideous beauty.