Their bond was unbreakable. The truth was unimaginable. When Beatrice receives a call to say that her sister, Tess, is missing, she boards the first flight home to London. But as she learns about Tess's disappearance, she is stunned to discover how little she actually knows of her sister's life. Everyone around her accepts they have lost Tess, but Beatrice refuses to give up, embarking on a dangerous journey to discover the shocking truth, whatever the cost...