In the Balance — Vanessa Graham

For years, Christy harboured a secret love for her beautiful sister's husband. But upon arriving at Jill's country home -- and seeing David again -- Christy is relieved to discover that her feelings have altered, and Jill's private life no longer affects her own. As if to affirm her new-found freeedom, Christy succumbs to the irresistible attractions of Nicholas Blair, headmaster of the renowned Manor House Prep School. But just as she begins to foresee a fresh start for herself, Jill has a scandalous affair with a teacher from Nicholas's school…and once again, Christy's happiness hangs in the balance.