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Hex 0809: Monastery of 17 Black Men led by “the Gossamer Imposition,” a chaotic 8th-level Sorcerer. Within this cloister hangs a great bronze bell and three strikers (one each of titanium, nickel, and vanadium). Using the titanium striker to ring the bell summons 6–36 Deep Ones, who will arrive within a day and are bound for a week. The nickel striker summons a single Shoggoth, which will arrive within an hour and is bound for one day. The vanadium striker calls down a curse upon the ringer of the bell, to whom hostile Spawn of Shub-Niggurath will be drawn at the rate of 1–3 per day.

Don’t know who to credit for this artwork, but it was found on this tumblr that Jeff Rients pointed out.

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Hex 0511: Citadel of 28 Black Men led by a lawful 6th-level Sorcerer.

Also known in selected local histories as Sigma Retreat. Found here.

 

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Unknown construct, transiting the Mutated Forest

Found here.

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The Faintly Chiming Citadel, western mountains overlooking the Blighted Lands

Check out this artist’s amazing work (hope you don’t mind that I cropped it).

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Citadels of the Black Dervishes, hills west of the Blighted Lands

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Mega-dungeon engineering fit for a doomed world... just imagine it more ruin-y and stuff.

http://io9.com/5845777/the-earthscraper-a-65+story+tall-skyscraper-buried-underground/gallery/1

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Hex 1010: Citadel of 11 Orange Men led by a Chaotic Swordsman

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"The sorcerer, after partaking of the root, must engage in sexual congress with the Kender eleven times, afterwards strangling it with its own hair."

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Yellow Man brigand leader of the Radioactive Desert