Quickening

As long as she could remember, Cassie saw things others couldn't; people with scales and tusks, others who looked normal, but when she touched them, sent her sight elsewhere. Warned never to let them know she could see them, she lived quietly, hidden. As her eighteenth birthday approaches, the adults who protected her vanish and those who hunt her search, looking to find her before her abilities quicken and she becomes what they most fear.