The feeders walk among us. They sap our energy and cause sudden old age death. Governments tell people it's a virus. If told the truth, it would shatter the fabric of humanity. Frank Hram, a respected financial consultant, knows what it means to be a feeder. A Covenant Keeper, he hunts rogue feeders responsible for sudden old age deaths. The US-based Project Purple knew all about them and the Covenant, desperately seeking a way to integrate them into the society before accidental or deliberate disclosure set the world into turmoil.