en-item is a kind of thing. [Items which need to be invisible but in scope.]
Hidden-Locker is a room. [This is to hold all the "invisible" socks and underwear!] "Why on earth would you think to look here?"
After deciding the scope of the player:
place Hidden-Locker in scope;
repeat with item running through hidden-items
begin;
place item in scope;
end repeat.
A description-concealing rule:
now every hidden-item is not marked for listing.
A description-concealing rule:
now every door is not marked for listing.
Part 4 - Writable Jotters