BS.
I have plenty of dispell magic scrolls and can't use even one.
I got a gem of seeing with 12 charges and can't use even one.
I own the "tomb of horrors" IRL and don't recognise the map of this Twine.
The only way shown to me is to pass through the mist a second time for instant game over.
What about the way you're supposed to open using a magic ring into a coin slot in the second room ?