Oh, my. Lex Luthor must behind this ultimate version of Punked, because only HE could orchestrate such an elaborate hoax.
So, the dress was found 100 years earlier in Room 416, but Lois Lane was checked into Room 420? Whose room was 416, I wonder? Clark Kent's? If the dress was made to fit Lois, then putting on the 100 year old dress won't transport her back in time. She must have been transported back without the dress (in her normal clothes?) and had the dress made back then. Or did someone else have it made for her?
How or where will Lois fall into a time hole? AND how will she get back? Will she get back? Or will she fall into a time hole which will take her further into the future? Is Clark stuck in time? (That question still hasn't been answered.) Can wait to find out.
I love a good mystery with magical and romantic elements.
