Editing S4: The Lost Caverns of Tsojcanth

{{Oldschool}}
[[File:S4 Lost Caverns of Tsojcanth.jpg|thumb|An apt summary would be: The local [[Iggwilv|cracklord]] was arrested and all their cronies and druggies tore the [[loot|copper]] out of the walls of the drug den. Now a bunch of [[Adventurer#Murderhobos|hobos]] are coming to collect the scraps and odd unused [[potion|syringes]].]]
'''The Lost Caverns of Tsojcanth''' is a [[Gary Gygax]] adventure module for [[Advanced Dungeons & Dragons]]. It is the fourth and last in the S series; followed up by the more-explicitly Greyhawk ("WG4") module, ''The [[Forgotten Temple of Tharizdun]]''. We're being literal: WG4 retcons that Temple into S4's wilderness.

This is a dungeon-crawl. It came out of an adventure "Tsojconth" run in WinterCon V, 1975; in which Iggwilv was male and the afflicted land "Perrunland". Recommended PC levels are 6-10.

==Backstory==
Nine or ten decades ago - says the backstory - the mage-ette [[Iggwilv]] conquered Perrenland, holding it for about a decade. To put it in [[George Martin]]'s terms, her economic policy was extractive. She spent the money on demonology. Whilst she was here she corralled no less a fiend than [[Graz'zt]], [[Demon_Prince|demon prince]] of three (3) Abyssal layers.

Aaaand ''that'''s what did it for her short-lived regime. A later experiment of hers freed Graz'zt. After some struggle Iggwilv succeeded in banishing that one right back down there, but at such cost that her own "henchmen and slaves" found it in themselves to scurry out with most of the treasury. (Turns out that Chaotic Evil is a bad fit for [[Retainer]]s, and that slaves don't like their masters either.) Perrenland freed itself easily after that. The old "Tsojconth" version claims Graz'zt killed Iggwilv, which status S4 leaves open.

The runaways didn't abscond with ALL the treasures; for a start, they left alone a lot of the magic, given how much of it was baneful as f@ck. The March of Bissel has now found Iggwilv's bastion. Bissel wants some of that sweet sweet loot, especially [[Daoud]]'s Wondrous Lanthorn, before its rivals (like Ket, and of course post-occupation Perrenland) get it. Enter the PCs for a good old-fashioned burgle.

==The Adventure==
{{spoilers}}
This starts with a wilderness section, through the rockslide-prone and monster-infested Yatils. Some encounters are keyed; some are wandering. Most of these wandering monsters have lairs with beaucoup treasure, which they (apparently) swap amongst each other. After a monster and the party meet, the map offers six enumerated possible locations for the former's lair - the closest location to that encounter, thus, becomes the site. Which means that another wandering monster can return to the same lair, assuming the adventurers aren't carrying a load of high explosives to close cave-mouths.

The Caverns don't have random encounters at all. They are divided into "Lesser Caverns" near the surface, then a stairway leading 900' down and 2700' west to the "Greater Caverns". Both caverns expand to fit a 10.75" x 7.75" board inset cover: so, 330' x 420' area. The top caverns are just lairs for whatever has showed up here, except for the stray [[golem]] and maybe the [[marid]] and the [[dao]] created and summoned by the dark mistress. It's all very boxy. Not on the maps, the former caverns fall over a 400' cliff to a lake below to the west, and the marid's chamber sits over a larger flooded cave-complex.

The lower caverns are where Iggwilv did most of her work and where the real treasure (and monsters) live - like her daughter Drelnza, now a [[vampire]]. This layer is full of demons and constructs - and a hill giant, who got here who-knows-how.

The 1975 "Tsojconth" version had different monsters in some rooms, for instance Chinese Hill Giants where S4 puts fomorians and Ernie's [[Elemental_Weird|Water Weird]] where S4 has the [[marid]]. Clearly, S4 swaps out Monster-Manual critters with newer ones, which a party might not know; and makes some token attempt toward an ecology for these beasts crammed together. Several of these had been gleaned from [[Dragon Magazine]], like the aforementioned marid and also the [[dao]] from "Featured Creatures" in issue #66.

==Legacy==
Tsojcanth's dungeons although standard for 1975 were amateurish by 1982. They lack the character of [[Tomb of Horrors]] and have none of the majesty of the [[Drow Trilogy]]'s underdark.

What S4 ''did'' bring (perforce) were those new monsters, also items. All the monsters ended up in the second Monster Manual. For items, S4 mooted the Lanthorn (mooted 1975!) and the [[Demonomicon of Iggwilv|Demonomicon]]. And many more. These were destined for the less-appreciated [[Unearthed Arcana]].

For the wilderness, S4's musical-chair theory of many wandering-monsters waiting in line for a finite set of lairs was interesting and even realistic; but that design hasn't been picked up by later modules.

Also, the Iggwilv / Graz'zt meetup - once S4 ruled it female / male - was coincidentally on schedule for its issue to be mature(ish) as of 505 CY. Here was conceived, as retcon, the birth of [[Iuz]].

Already mentioned was WG4, for direct followup. Less-known perhaps is [[The Dancing Hut of Baba Yaga]], on occasion proposed as ''S5''.

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