The Shadow Walkers

When Katherine Dailey's sister-in-law, Anna, goes missing from her New York apartment, she foolishly hopes that it's just a coincidence. Ever since the funeral of her older brother, Katherine had tried very hard to look after his grieving wife. It was a daunting task, especially with the secrets that she kept on her shoulders. She had moved to California for two years, and all seemed well, until three months ago when she got a phone call from an old friend, delivering the bad news. Will she be able to rise to the occasion, or will it get the best of her?