Shadowed-Death by Design

Escaping an abusive boyfriend only to be pursued by a stalker designing deadly accidents, can Lucy outwit her saboteur? Royal twins switched at birth? Who cared? Until the heir apparent died and must be replaced! But by whom? Lucy must determine the identity of the true prince before the birth order can be legally (she doesn't have all the time in the world!) and conclusively decided! What is her ulterior motive?