jdnd/ideas/After-Crow.md

I need some help brainstorming ideas for a planescape
campaign.  The situation is convoluted, bear with me:

Rennick is a man with an unusual ability: he can predict
random events (quite limited).  This ability has made him a
person of interest for many people with many different
agendas - including Tymora, goddess of Luck.  The PCs are
working for Tymora, and they have been tasked with finding
and questioning Rennick.

Another group that had an interest in Rennick is the Sign of
One.  In my campaign, the Signers believe the universe is
just a dream. As for *whose* dream, they believe in the
"grandmaster theory."  A master painter will often sketch
out a painting, and do a little work, then turn it over to
his journeymen, who will finish the painting.  The
journeymen will sometimes even delegate further, to their
apprentices.  The master takes credit, but the painting is
actually the work of many people.  The grandmaster theory is
that the universe is just like the painting: the grandmaster
has sketched out the rough outlines, but we're all
contributing to varying degrees.

The Sign of One employ a team of "seekers" whose job is to
try to find the grandmaster and the masters.  The seekers
are curious about Rennick: they theorize that he isn't
predicting random events, so much as actually dreaming them
up.  Is he a master?

Yet another person who has an interest in Rennick was a
murderous wizard name Crow, who is convinced that Rennick
is an oracle.  Crow has the ability to steal peoples powers,
and he thinks he can drain Rennick's life to acquire the
powers of an oracle.  Rennick went into hiding to evade
Crow.  Now the PCs have defeated Crow, so it's safe for
Rennick to come out of hiding.  However, there's a catch.

In order to hide from Crow, Rennick decided the safest place
was a demiplane.  Demiplanes are great hiding places for two
reasons: first, a divination spell asking "where's Rennick"
will just tell you, "in a demiplane that doesn't have a
name."  That's super not-helpful.  Second: to plane shift to
a plane, you need a tuning fork.  Nobody has a tuning fork
for a demiplane.  So: demiplanes are good hiding places, if
your opponent is a powerful wizard.

Rennick lives in the City of Sigil, which has portals to
many planes and probably many demiplanes.  However, when
Crow attacked, Rennick didn't have time to do a lot of
research.  He had to flee to the one demiplane he knew about
off the top of his head.

You see, about two weeks before Crow's attack, the
Signer-Seekers brough Rennick to the hall of speakers, where
he was examined by factol Darius.  Darius concluded that
despite Rennick's special ability, he's no master.  However,
Darius confided in Rennick: morale is low among the seekers.
They've been searching for masters for years, and have found
nothing.  Darius asked Rennick to pretend, to put on a good
show, in order to boost morale among the seekers.  Darius
explained that this would involve submitting to a testing
procedure, in which Rennick would be placed into a
"visualization chamber" designed to test his ability to
imagine things.  The visualization chamber is actually a
demiplane that causes people's unconscious imaginations to
manifest.  When Darius offered, Rennick was curious, but in
the end he decided that he simply didn't have time.  Darius
let him go.

However, when Crow attacked and almost captured Rennick,
Rennick escaped and fled to the Signers.  He took Darius up
on her offer, on the condition that he be placed into the
visualization chamber immediately.  He knew Crow would not
be able to find him there.  He submitted to testing, but
when the testing was over, he refused to leave the chamber.
The signers tried to remove him, but luckily for Rennick,
the manifestations of his imagination defended him.

This strategy worked: Rennick managed to barricade himself
in the chamber for several weeks, aided by the figments of
his own imagination, and in the meantime, Crow failed to
locate Rennick, and now Crow has been defeated.

At some point, Rennick unintentionally imagined an army of
himself fighting off an army of signers.  This was a huge
mistake.  There are now hundreds of Rennick clones in the
chamber.  They know everything that Rennick knows, including
the fact that they are figments of the real Rennick's
imagination.  They know that if they leave the chamber, they
cease existing, and they know that if the real Rennick
leaves, they cease existing.  They're protecting Rennick
from being extricated from the chamber, which is what
Rennick originally wanted.  But now that Crow's dead, the
clones still aren't going to let him leave.

The PCs know that Rennick is somewhere in the basement of
the hall of speakers, and they know that they need to talk
to factol Darius.

OK, so here's what's missing from this picture:

* What are the original figments that helped protect Rennick,
in the beginning, before the clones manifested?

* What figments of the PCs imaginations will manifest, now
that they're in the chamber?

* What kind of mini-adventure is going to take place inside
the chamber?  I should note that the chamber is as big as
it needs to be.