Okay, I did a bit of searching but cannot find anyone posting on this save for adventure information. Did no one's party thing that this item would be worth a ton? Of course the GM could just say that it is destroyed after leaving the Lust Dungeon, but it's extra planer cloth. Personally I think it would stick around.
But this begs the question, how much is it worth? This kind of item reminds me of the Adamantite Doors in an Ebberon adventure I played. Cloth that is immune to electricty and cold, fire only deals half as well immune to bludgeoning and piercing attacks. I've always thought of giant spider silk armor as something someone should have thought of since spider silk is stronger than steel, but extra planer spider silk is just insane. I think magically making armor out of it is a way to go, but I'm not sure the stats to give it. The hardness is around the same as steal, but the hit points are more than Adamantite. I was thinking high AC, no max dex, DR against bludgeoning and piercing, electricity, cold, and fire resistance.
Anyone think this could be a game breaker? Or would this kind of armor be par for going up against Karzoug? This is also an adventure that will eventually meld into the Age of Worms Campaign with high level characters.
Making armor out of this would probably fall under the same rules as making armor out of dragon hide, just restricted too cloth-based armor types. It'll be able to be enchanted more easily to resist the elements it's immune too and there is also the possibility of giving the wearer a DR vs slashing attacks, similar to adamantine armor.
I would agree it should survive leaving the halls of lust, the anti-aging field only refers to living creatures, not objects.
As far as what it's worth? There is a price listing for silk in the core rulebook at 10 gp per square yard but this is some pretty damn super silk. I wouldn't hesitate giving it a value of 10 to 50 times greater than regular silk if you want a realistic market value. There's also quite a bit of it, over 500 ft of length times an unknown height (plus the pitched roof). At somewhere between 100-500 gp per 10 ft square, it should make them quite a pretty penny. If they can find a way to haul it out........
These are just some rough ideas and you might have to do some rules juggling, but don't forget, at the end of the day it's worth what you say someone will pay for it and it does what you say it does.
Also remember that it's abyssal spider silk and that it rustles with a life somewhat of it's own, they're going to have to find a buyer that won't be bothered by this little fact and this could be expanded a little bit if you want to focus on the creepiness factor, maybe something like anyone non-evil having the feeling of sticky little spider legs prickling at them constantly.........
Thanks a lot for the feedback. I ended up glossing over the actual manufacture a bit, simply saying that it would require magic to craft it into armor. I gave the armor a base +7 armor with no dex penalty, DR 10/slashing or adamantite, 10 Cold and electricity resist, and 5 fire resist. Working with one of my players who is also a gm, we worked out that the party got armor made from him (and one player got a robe that just gives him the resistances) and the leftovers goes to the crafter as payment for making the armor. Of course that leaves the maker with a lot of extra cloth, but it takes care of the mechanics and sale of it pretty easy without making this too over powering. I was otherwise going to have to find a kingdom to buy the tent cause that's the only thing that could conceivably afford it.
It's pretty over powered armor that way, but my players are actually somewhat behind in levels from changing systems part way through, I haven't awarded extra xp much because they are in fact over powered enough as it is. This armor should hopefully help them survive the Age of Worms campaign as well since it's a player killer and we've already had a total party wipe on it.