Sitting area, reading room, family archives …
For a few years now I have been trying to remember a scene somewhere in DS. I'm afraid this is about as vague as you can get, but there was a brief scene at Collinwood where Barnabas was seated in a high-back arm chair reading a book in a room that appeared to be a study, den, or library on the second floor. Elisabeth came in the door directly behind the chair. That's it.
I'm wondering whether there was ever mention of a library at Collinwood. If a library was mentioned, it would likely have been much earlier in the series when Dr. Hoffman first appeared on the scene and was researching in the Collins family archives. We never got to see her in that location, though.
The room I'm thinking of was not the first floor study which we saw from time to time (one of my favorite rooms!).
I found what may have been the room I'm thinking of in a photo on a DS wiki, where it seems to be just to the left of the armchair pictured in the photo but is cut off. The location identified by the wiki is Angelique's room in 1970 PT. It is also referred to on the wiki as the 1970 PT "parlor."
Barnabas was a reader and I've often wondered if that attribute was Jonathan Frid's contribution to the character.
Quote from the wiki:
http://darkshadows.wikia.com/wiki/East_wing_parlour[labeled Angelique's room, but when clicked on called the 1970 PT parlor]
The East Wing parlour, or "Angelique's Room" as it came to be known in 1970 by those who understood its power, was a room in Collinwood's East Wing that was closed off and not in use by the Collins family before the year 1840 (1186). It's use prior to that time was not depicted. A warp in time existed within the room, which allowed the parlour to serve as an entrance to Parallel Time.