When sixteen-year-old Becky Watts disappeared from her home in Bristol, the search began as many missing-person cases do. There was concern, confusion, and hope that she would be found safe. Within days, the case would expose a far more unsettling reality, one that challenged assumptions about safety, family trust, and the limits of visibility inside ordinary homes. This book offers a carefully documented, non-sensational examination of Becky Watts' disappearance, the investigation that followed, and the criminal proceedings that brought the truth to light. Drawing exclusively from publicly recorded timelines, court records, and verified reporting, it reconstructs events with clarity and restraint. Unlike memoir-driven accounts, this work focuses on understanding how harm becomes possible rather than reliving it. It explores the early hours of the investigation, police decision-making under pressure, the role of behavioral inconsistencies, and the challenges officers face when familiar figures emerge as suspects. The courtroom process is explained in accessible terms, allowing readers to understand how evidence is presented, tested, and weighed in the UK justice system. Beyond the case itself, the book addresses the wider questions many readers ask but rarely find answered. How do warning signs go unnoticed inside families. What systems exist to protect young people, and where do they fail. How can schools, health professionals, and caregivers better recognize escalating risk. Written with ethical care and an educational purpose, this book avoids graphic detail and sensational framing. It is intended for readers seeking understanding rather than shock, and for parents, educators, and professionals interested in safeguarding, prevention, and informed awareness. This is not a replacement for personal memoirs written by those who lived this loss. It stands alongside them, offering a structured, evidence-led perspective aimed at learning, accountability, and the responsibility we share to protect young people.