Summary of what happened:

We gathered at my house to discuss what to do; Mank was still lying
unconcious on the floor from his interrogation, half of the party was
there discussing what to do, and the rest of the party came back from
visiting Rag Vorn and the orcs in the mine tunnels.

After some discussion of various plans, we settled on tracking the
T'Skrang who had been watching us at the mineshaft entrance.  We did;
his trail led to the mansion of the T'Skrang Queen Mother.  There the
trail split; it was apparent that he had left and come back and left
again, but not which trail was fresher, so the party split to follow
both.

One trail led to the Troll tunnels.  It led through the troll village,
and into a blind wall.  The party discovered that some trolls are
apparently experimenting with building ships of some kind.  Also, this
trail indicated either a very effective illusion of false wall, or
some sort of magical travel on the part of the T'Skrang, since it
ended with footprints leading into a wall.  It also implied some sort
of concealment ability on his part, or some arrangement with the
trolls, since a T'Skrang wandering through trolltown would not
normally escape unscathed.

The other trail led to the council chambers, where the T'Skrang was
listening at the door.  We chatted with him, establishing that his
name was Catan, and that he worked for the T'Skrang Queen Mother at
the moment.  Listening at the door of the council chambers, we heard
that they planned to round everyone up and herd them into the water
tunnels, seal them off, and have their elementalists purify the air
while they sent brute squads out to scour the Caer for anyone who
didn't go along with the plan and for the true elements needed to
repair the air filter.  They planned to search people as they were
sent in, and probably to do harsh things to anyone they didn't like,
once everyone was in one place and unarmed.  A dwarf thanked the
council for inviting the librarians to give them guidance, and said
Jesper would be happy to help them.

A third portion of the party stayed behind to watch the T'Skrang Queen
Mother's mansion to see if he returned or anything else happened.
They observed a litter being constructed to carry the Queen Mother.

We regathered and discused this turn of events.  We decided that we
needed to warn Rag Vorn of the danger he would soon be facing from the
brute squads and/or asphyxiation from not being invited into the water
tunnels.  I and Eleia went to do that.

H'azard returned to the library to ask them for guidance.

Much of the rest of the party went to attempt to recover the map from
the tower of the council chamber, since leaving might soon be a clever
plan.  I believe I am missing some information about what went on
here, so someone please fill in this gap.  I'm told some alarms were
set off, but the party recovered the safe from the tower.

Almost immediately after E'leia and I reached the bottom of the
elevator shaft, someone cut the rope and summoned or imported
(summoned seemed more likely) a lot of rock into the elevator shaft,
destroying the elevator and filling part of the shaft.  In the area at
the base of the shaft, there were a large number of orcs gathered,
roughly armed and organized, along with food, water, and supplies.  We
talked with them; they were hoping to evacuate the Caer due to the
current emergency and the likely political results (i.e. the dwarven
librarians taking over).

E'leia used a spell to move the rock a bit at a time out of the shaft.
I tied a rope to an arrow and shot it up the shaft; Vorn did something
to make it hang there while some engineers climbed up.  While we were
doing this the rest of the party assembled at the top of the shaft.
We had a long slow conversation; two subgroups were sent out to
collect carts of food and water, since it was clear there were going
to be problems getting the elevator to take the orcs supplies up.
They returned without incident.  H'azard appeared with an Elven
swordsman, apparently an adept of some sort; the two of them had been
assigned to one of the brute squads rounding people up and bringing
them to the water tunnels.

Many of the orcs took a back route out of the tunnels, which was too
small for the mine carts; we rode the elevator up with some of the
supplies.  As the group was getting organized to move out toward the
exit tunnel, it was observed that the Elven swordsman had left; I,
Joan, and Zirin followed him and attempted to stop him from reporting,
for fear that he would summon someone to stop the orcs.  Zirin
attempted to trip him and Joan circled around to get in his way; he
attempted to hit Zirin with a club and Joan with his sword.  While he
was thus distracted, I shot him in the leg with a practice arrow; he
fell to the ground.  Zirin and Joan disarmed him.  I took his club,
which he said was a symbol of being on the brute squad.  It was clear
that he was not bleeding, and thus would be able to limp back to the
water tunnels, or at least make enough noise to be found by a brute
squad, so we left him.

Zirin, Joan, and I then returned to my place to get Mank; I carried
him back while they watched for trouble.

The dwarven engineers burned a small hole into the safe, which
revealed that it contained some papers and the true wood and
orachalcum that we were looking for.  Thwak then borrowed some tools
and used his immense strength to pry open the safe.  The papers did
not include the maps of the exit tunnels, unfortunately; they all
appeard to be blank.  I do not think we have done enough magical
investigation to see if there is any hidden writing on them, but it
was speculated that they were only in there so that any scrying
attempt would reveal the correct sized pile of papers.

A small party consisting, I think, of K'Shrik, E'leia, and Zirin, went
to talk to Catan.  They tracked him down and offered to trade the wood
and orachalcum for the exit map.  After negotiating, they traded the
wood and orachalcum for him telling everyone that we found it and
saved the caer.  We cleverly gave him the parts, and then argued with
him and insulted him until he got pissed and left, making it seem
somewhat unlikely that he will be really enthusiastic about telling
everyone how wonderful we are.

We discussed the dreams several of us had about leaving the Caer;
people compared notes on the traps we had faced in hopes that those
portions of the dream would be correct.  E'leia is coordinating this
effort, so everyone who remembers things should be talking to her.

The day ended with us and the orcs about to face the challenges of the
tunnel outward.  I suspect a lot of us are getting pretty tired; I
believe we should go past at least one trap before getting some
serious rest, to hinder anyone following us.  If I recall correctly
from the dream, the first major trap is the sideways gravity section;
it will take much time to stage the group and the supplies past that
(and it will be painful to get the carts down...); that may be a good
opportunity for us to get at least a bit of sleep.  Vorn indicated
that he had some way to keep people awake and alert for a long time; I
suspect he will be concentrating on using that on the elementalists,
though, to keep the air supply good.

Conclusions:

I've come to the conclusion that some of the dwarves on the council,
supported by some of the higher level adepts in the caer, are behind
everything in a grab for power.  Why?  Well, it always bothered me
that with everyone's life in danger, they asked a bunch of low-level
adepts to go fix things.  Almost as if they wanted us to fail.  And
the parts were in the council safe; hardly the place that someone who
wanted everyone to die would put them, but a nice place for Jesper the
possibly mythical dwarf to hide them so that he could conveniently
step out of the council chambers and 'find' them quickly.  And the
dwarf who sent us on this mission constantly refused our requests for
help or information.  And at least some higher level adepts were in on
it, because someone had the leverage over our masters to get us sent
on this mission without telling our masters what or why; also, whoever
dumped the rock into the elevator shaft was probably an elementalist
summoning it, since

Also, we seem to have eliminated most of the other possibilities...
Vorn clearly wasn't behind it, since he cleverly trapped himself in
the basement when the crisis hit; he'd have been screwed if E'leia
hadn't been there.  Ditto for the Fury.  Speaks with Stone and the
Trolls weren't up to much of anything beyond shipbuilding, and from
what I've heard didn't appear prepared for a crisis.  It is unclear to
me whether the Queen Mother had anything to do with this; Catan was
clearly spying on the council on her behaf, but it seems odd that he
would have mentioned the safe to us if they were the ones to stash the
items there, since we probably wouldn't have spent so much time trying
to get it if he hadn't repeatedly mentioned it.  As far as I know,
there are no organized human or elven groups, the Humble doesn't do
this sort of thing, which leaves the Adepts, the Council, and the
Librarians as the three organized groups remaining, and the Council
isn't that organized and appeared to be legitimately panicing.

I may be wrong however; feel free to counter-speculate.

Lessons:

The party was much more coordinated this time.  We got a lot more
done, some of it through luck, but most of it through teamwork.  Keep
it up.

Yes, we split up a fair amount, but we tried to let each other know
where we were going and where to meet up again, and it seemed to work
well.  We should try to minimize splitting up in the future, since it
can lead to all sorts of problems, but when necessary, this is the way
to do it.

Don't always trust people who send you on missions; think for
yourself, and be open to unusual solutions.  Also don't prejudge
people; the fury, for example, is doing all it can to save lives,
despite what you may think of them...

Hopefully after all we've accomplished, we will be able to rest for a
little while; I think all of us have learned a lot, and will soon be
able to meditate and improve our Talents.  Ponder which ones have been
most useful, and which might be most useful Outside.