I wasn't surprised to see the seaweed on the floor--the writers had to make sure it was still there so Roger and Elizabeth could find it later.
Spoooooooky story, Lydia! It reminds me of the one--no seaweed, however--in which a mysterious young girl hitches a ride with a guy, who lends her his sweater. She gets out of the car at a deserted house, but the young man is so smitten that he forgets to ask for his sweater back. After asking a lot of people about her, he finds out that she died years before--and finds his sweater, neatly folded, on top of her tombstone.
Okay, I'm willing to concede that Vicki's robe looks like something from John's Bargain Stores (if anyone remembers those). At least Elizabeth's caftan had a few stylish features, however unfortunate they were.