Marina realized that her necklace seemed to be a mystery, but she didn't know how to deal with it. She decided to consult a lawyer in Paris, but she didn't know how to make an appointment. She decided to visit her good friend, an architect named Emmanuel. Emmanuel told her that he knew a lawyer named Roland who could help her solve the problem. After hearing this, Marina was very happy and immediately went to Roland's law firm. There, she made an appointment with her lawyer. In the next few weeks, Marina would go to Roland's law firm every day to meet with the lawyer. She provided more details to the lawyer and the lawyer began to help her analyze the ownership of the necklace. In the end, the lawyer told Marina that her necklace did not belong to her but to her grandfather, who used to be active in the noble circles of Paris. The lawyer also told Marina that if she wanted to solve this problem, she needed to submit a certificate to prove that the real owner of the necklace was her grandfather. Marina was shocked, but she knew that she had to solve this problem. She decided to go to her grandfather and explain everything to him. When she found her grandfather, he told her that he didn't know who the real owner of the necklace was. He told Marina that he had always regarded the necklace as his own because he thought it was his family's inheritance. Marina was very disappointed, but she did not give up. She decided to ask Roland for help. Roland told Marina that he knew a jeweler named De Bernard who could help her solve this problem. So Marina went to Bernard's jewelry shop to show her her necklace.