The Dark Book in Finnish would be "The Dark Book" or is a product name. But instruction says do not translate product names, titles, brand names, model numbers, or other proper nouns — keep them exactly as written. So we should keep "The Dark Book" as is. But the user provided only "The Dark Book" with no additional description. They want to translate user's product description from English to Finnish. Since it's a product title, we must preserve. So output exactly: The Dark Book But they request to preserve line breaks and paragraph structure. There is no line break. Just the same. Return only the translated text. So we output: The Dark Book