Alexandra Cromwell and The Order of The Phoenix

Alexandra Cromwell, Slytherin extraordinaire, only daughter of extremely rich, prodigious wizards has a secret any Slytherin would loathe. The prophecy to her name strengthens her, but makes her acceptance a distant dream. Added to the consternation of the Order and the strength of the Dark Lord growing is the fact that a Death Eater's son has taken to fancy her. What happens next?