I just re-read Shadows, and I think these sophonts may still be alive and living nearby.
(a) Room #4 has cultivated plants, ripe for harvest, and the implied growth period is in years (not decades, not centuries). Room #8 has immature plants, meaning they were planted more recently. So two rooms are in current cultivation.
(b) Room #20 has a sophont's skeleton. We know that bones do erode in this atmosphere, albeit slowly -- but the erosion period is likely to be years at the latest. Thus this skeleton is most probably recent.
Together with the evidence in rooms 4 and 8, we have support that these sophonts are still alive and living outside, nearby.
(c) According to the "Interior Features" => "Environment" => "Lighting" notes, the lights in Rooms #20 and #23 were deliberately broken to put them out. However, no particular date or motive is suggested.
(a) Room #4 has cultivated plants, ripe for harvest, and the implied growth period is in years (not decades, not centuries). Room #8 has immature plants, meaning they were planted more recently. So two rooms are in current cultivation.
(b) Room #20 has a sophont's skeleton. We know that bones do erode in this atmosphere, albeit slowly -- but the erosion period is likely to be years at the latest. Thus this skeleton is most probably recent.
Together with the evidence in rooms 4 and 8, we have support that these sophonts are still alive and living outside, nearby.
(c) According to the "Interior Features" => "Environment" => "Lighting" notes, the lights in Rooms #20 and #23 were deliberately broken to put them out. However, no particular date or motive is suggested.