The underground chamber remained silent. Nobody moved. Nobody spoke. The words from Aditya's father's recording echoed in everyone's mind. "Ananya is not the target. She is the key." Ananya stood frozen. A person. Not an object. Not a document. Not a hidden location. She was the final key. "Why me?" she whispered. No one had an answer. Not immediately. Professor Acharya slowly walked toward the stone tablet. "Your grandfather knew this day would come." Ananya looked at him. "My grandfather?" Acharya nodded. "He discovered the final layer of the cipher." "What does that mean?" The professor touched the ancient inscription. "The original guardians believed the truth should be protected by documents." He paused. "Your grandfather discovered they were wrong." Devendra continued. "Information can be stolen." "Documents can disappear." "Keys can...