Where is Nadia's treasure, Sophia's chamber of secrets?

In the orange flash point. The adventure of Cape Vidra, the treasure of nadia, is a small town full of treasures, mysteries and beautiful women, with epic stories and rich experiences. Sophia, the treasure of Nadia, is in the orange glitter in the lower left corner. Go back to the basement of the mansion, step on the organ, enter the secret room, and go right back to the sewer.