The level teleport arrival regions (which also apply when invoking the
W quest artifact's temporary magic portal) on the Ft.Ludios level had
the wrong bounding coordinates.
While there, I've added a corridor between the welcome/zoo room and
the empty room at the top. The doors are secret so monsters won't be
able to use it until they've been discovered by the player (which
happens with magic mapping as well as with searching). I put a giant
in the formerly empty room, and made that room's original door secret
too so that the giant won't smash it down to get out, then smash down
the door between the zoo room and the main area around the fort.
The code to apply an automatic annotation to the knox level was looking
for a drawbridge like on the castle level, but knox doesn't have any
drawbridge. Look for its door instead. (It's initially a secret door,
so won't be revealed via magic mapping. It needs to be found or
destroyed to get mapped as a door or empty doorway in order to trigger
the annotation.)
Also, give a tiny bit of variation to the knox level layout. It used
to have both the throne and the secret door on the lower of two similar
rows and the door into the treasure vault on the upper one. Now each
of the three can be on either of those two rows (independently of each
other), making eight possibilities. This doesn't accomplish much,
other than to make the secret door locations not always be at the same
fixed spot.
Responding with '?' to the "what level?" prompt when using ^V in
wizard mode brings up a menu of special level destinations that lets you
move across dungeon branches. But getting in and out of Fort Ludios
didn't work, and jumping to the endgame forced you to arrive on the Plane
of Earth. Now Fort Ludios will not be selectable in the menu until after
the portal ordinarily used to reach it has been created (so you'll need a
level between Bigroom and Medusa with a vault on it to be created before
you can bypass the magic portal and jump directly to the Fort), and you
can go directly to any of the elemental planes, including Astral, without
stopping at Earth first (the Wizard will be there to greet you, whichever
level you pick). Also, this limits the menu to endgame entries once you
are in the endgame. (Previously, picking a non-endgame level would yield
"you can't get there from here"; you can still get that, if you really
want to see it for some reason, by giving a destination level number
outside the range of -1 to -5 instead of using the menu.)
I hadn't realized that this feature has been around since 3.4.2 until
I couldn't find any new feature entry for in the current fixes file....