The Secret of Holly Green Manor — Karen Cogan

Lydia Summers lives beneath the shadow of a dangerous secret. For years, her family has been cursed by the untimely deaths of heirs to their estate, Holly Green Manor. When the new heir turns out to be her handsome young cousin, Lydia hopes above all else that the curse has died with her ancestors. And yet, fear for James is her constant companion, especially when he becomes the target of someone with a vendetta to carry out.