detective girl, Nancy Drew, (18yo), focused expression, magnifying glass in hand, brown hair in ponytail, casual outfit, jeans, sweater, comfortable sneakers, investigating, old mansion, vintage furniture, dusty bookshelves, dimly lit room, flashlight beam, eerie shadows, point-and-click adventure, puzzle-solving, interactive clues, atmospheric lighting, mid-shot, detailed textures, rich colors, suspenseful mood, ambient soundtrack, 3D graphics, PC game, Steam platform, mystery genre.