Karen Danburn knows she's adopted, and never thought much about that fact. But on her 18th birthday her parents tell her that her birth parents were from a far star.

They pass on to her three presents: a tiara, a suit, and a car. From a super-advanced civilization, each has almost magical powers.

Karen learns to use those powers and her wits to help others, first as a Marine Ranger, then as a covert crime fighter and guardian of the helpless everywhere.

But duty even for an invincible hero has costs. Is she willing to pay the ones demanded of her?