A bit of geographic inconsistency...

[PlaneWalker]

If the stalactite is as big as the history said, and if the river system in it is as extensive as the developer said, won\'t the amount of water hitting the lake below be enough to create a constant mist?

[zinder]

I dont think so. First you need to think about how big the staladtit is. Even the niagara falls dont mist a large area.
Second only the water from the lowest unfloded level can waterfall in the sea. Then there is the question of how that level is flooded: completely and cities for nonswimmer are in the walls or only partly with dry land near the walls?
Third the walls are tunneled by the stone labyrinth. Resulting in rivers wich dont fall over the wall but disapear in the ground or wall.

[PlaneWalker]

Um.. I meant from what I read in the history of the PS setting.

They described the stalactite as being a third of the cave, and water are coming out and pooling into a lake.  Now, judging from the art rendering of the city (the one in setting) and the description.  I say the stalctite has to be at least 1 to 2 km tall (Niagra fall is no where near that height).  Also since there\'s a lake submerging the 6th and 7th level, and they say there\'re rivers, and the history did describe water coming out of the stalactite and into the pool, a picture of a huge stalactite and a stream of water falling about 3~4 km distance is going to do something VERY impressive.  And considering most waterfall are misty near the bottom, I naturally assume that the mist from this waterfall will be massive.

[zinder]

Sorry, I thought you talked about the inside.
Yeah the waterfall on the outside could produce much mist. But AFAIK there is no way from inside to outside the stalactit for chars to see it.
 If there is such a big waterfall, the mist would to a big part condens on the stalactit. Since on the inside the crystal heats the soil and vaporates water, there is a flow to the inside to feed the rivers.
If the rivers are ceated by the the inside clima, the waterfall would be very small. Perhaps even only single drops.
Since in both cases there is a probably working water circle, both are possible. And till there is a way from inside the stalactit to inside the cave, we wont know if they go with a big or very small waterfall.

[PlaneWalker]

Hm... considering the story that the city is underground and the implication that ther\'s an above ground world...  Perhaps the water being dripped/fell down there could reach the surface and reenter the stalactite through cracks or something.  This way larger rivers could be supported.  And perhaps the people in the stalactit could reach the cave they\'re in through the bronze door or something.

[XpYtZ]

I was under the impression that the bronze doors did lead out of the stalagtite, but that it was a long and dangerous journy just to get to them not to mention traveling through them to the outside.
I have to say that the water coming from the stalagtite would be a lot larger than 2-3KM. If the Stalagtite is large enough to hold an entire world in and of its self and it only takes up two thirds of the cavern than the distance from it to the lake would be at least one half that of the stalagtite, or the height of four levels. I doubt that a level is only like one Km in height so that puts the waterfall coming out the bottom at...Oh, about huge.
However there is the Black Flame down there so I don\'t think any of us are interested in goin \'out\' and taking a look.
As for the mist and steam. I would be willing to bet that it makes the places closest to the \'outside\' of the stalagtite extreemly humid. But I doubt that it can be blamed for our weather \'inside\'.
I always thought that our rain was coming from a subterrainian lake that rested overtop of the entire stalagtite. But than that is aimless speculation.

[Mezasa]

After reading this, I just remembered that we are in a cave with rain.  My guess would probably be a lake too, but what if it\'s actually being created by the great wizard Merlin who wants to kill us all and eat our brains after the acid rain he creates makes us all die?  Hey, it could happen!