The Ripple Series

Samantha hides a secret genetic ability to vanish from sight. When she learns about a megalomaniac who wants to use genes like hers to create an invisible army, she's determined to stop him before he topples governments and destroys everyone she loves. In the struggle to protect her family, a newfound crush, and humanity itself, her own life seems a small price to pay. But how do you fight an enemy you can't see?