Generate a concise, detailed and straightforward text focusing on the topics i will give you about the tv series Dark Shadows from 1966. I'm looking for a straightforward and non-flowery style in this article with minimal use of adjectives. Please use simple and easily understandable language throughout the article. Try to avoid repeating the term 1966 tv series Dark Shadows too often in your response. This is used for a middle part in our script. Cut out intro and outro and jump right into the given facts. Using the information provided, craft a narrative or response that begins with a general statement or an engaging opening sentence that does not include the name or title of the context in question. Here Are the facts :
 
1: The secret passageway in the Collinswood drawing room was designed from the outset, but it wasn't utilized on-screen until much later.
2: Three of the last five storylines of Dark Shadows feature characters played by John Karlen and Nancy Barrett as love interests, the exception being both the 1995 and Summer 1970 storylines, which were back-to-back. Both the first storyline and the last storyline that featured their characters as love interests took place in Parallel Time, albeit in different years (1970 and 1841). Karlen and Barrett would play a married couple in Night of Dark Shadows (1971).
3: John Karlen wasn't the original actor to play Willie Loomis. James Hall left the role after four episodes, and the role was recast with Karlen.


        Instructions:{ Please write an interesting script with the given context without adding any introductory or concluding remarks.
        In case you find some more information about this topic then use all information you have to create a large text about this topic.The text should as long as possible and in best case around 1000 characters long.
        Ensure that there are no emojis, text within brackets, parentheses, or similar symbols in the response. 
        Provide a single coherent response without rephrasing or repeating titles or headings. Avoid enumerations or bullet points. 
        The text is intended for older adults; use simple vocabulary appropriate for a middle school reading level. Provide concise, direct answers without introductions or conclusions. 
        Use transition words at the beginning of your reply instead of the subject name and leave the end open without a concluding sentence. 
        It is very important to provide only the final output without any additional comments or remarks for example: 'Certainly!' Here's the revised text.
         
        Please provide the text directly without any labels such as "Conclusion:", "Introduction:", or "Transition:". Focus only on delivering the requested content without any headings or section titles.
        Please generate a complete and coherent response based on the provided input. Ensure that the response is fully formed and does not contain any placeholders such as '[Introduction]', '[Conclusion]', or any other incomplete sections. 
        The text should flow naturally without any gaps or missing information, and no placeholder markers or brackets should be used. 
        Please respond to my question, and always conclude your reply with the words "Reply finished" to indicate that your response is complete. 
        Make sure the reply is fully contained before these words and is not cut off prematurely. Thank you.}
         Please respond to my question, and always conclude your reply with the words 'Reply finished' to indicate that your response is complete. Ensure that the text is fully formed without any placeholders such as '[Conclusion]' or '[Placeholder]'. Make sure the reply is fully contained before these words and is not cut off prematurely. Thank you.