"Into the Darkness" by Barbara Michaels

Let me tell you a story about a woman named Meg Venturi. She was born in Sedon, a small New England town. Her Grandfather Daniel Mignot, a roguish and mysterious founder of a majestic empire, died after a sudden short illness. So Meg had to back to Seldon, which is the small town that she ran away from so many years before. She expected only to pay her respects and to act as a pillar of strength to her fragile Grandmother. When Meg got there she received the shock of her life, which was that her beloved grandfather had left her the local antique jewelry store that was his greatest joy. With this inheritance came another, even more startling, legacy as she was forced into a business partnership with the man Daniel Mignot selected--the man half the town whispered was responsible for the old millionaire's death. …