what can silence the nightsong bg3

To silence the Nightsong in Baldurs Gate 3, players need to find the book "Teachings of Loss: The Nightsinger" and place it on the pedestal labeled "Riddle of the Night" in the Silent Library. The book can be found in the southeastern side of the Silent Library, specifically in the second bookcase on the right as you enter. After defeating the justiciar duellists, players need to disarm the trapped bookcases all around them and search for the book. Once players have the book, they can place it on the altar and solve the Riddle of the Night.