The third child - Marge Piercy

The internationally renowned novelist and poet creates a very contemporary version of the story of Romeo and Juliet set in the twin realms of college and national politics. In the prominent political family of the Dickensons, ambition comes first, and Melissa, the third child, has always felt she came last.
Going away to college offers a chance at love and a life free from her brilliant mother's constant scrutiny. Blake, a child of mixed race and apparently unknown parentage, has been raised by lawyers whose defence of death row cases has brought them into fierce dispute with Melissa's father, now a senator, then governor of Pennsylvania. When Melissa meets Blake at College, their passion is immediate.
Yet Blake is keeping a dangerous secret from Melissa, one that could destroy both them and their families. Dealing with themes of love, honesty, identity and the consequences of ambition, this thoughtful beautifully written story is a page turner with an edge.