A superb adventure for the Dying Earth RPG. Parts 1.4 & 1.5 of Ian Thomson's excellent Footsteps of Fools series (others in the series include All's Fair at Azenomei and Strangers in Saskervoy). Also possible to use in a stand-alone capacity if you don't want to run the whole series.
Lords of Cil has our dashing adventurers advancing out of Saskervoy and into the the ancient Empire of Cil. Explore the majesty of the airy Grand Palace, interact with refined and courteous nobles, and dine in the finest inns of the industrious and thriving town. Oh wait! That was last aeon. Coughs nervously: Pretenders to the crumbling throne, mutter, Political Intrigue, ahem, Demonic Infestation, blah, Murder, humph, Cobwebs, Flashing rapiers...
This is part of the Footsteps of Fools series of Dying Earth adventures. You can run each adventure independently, but they are more fun in the right order:
1.1 All's Fair At Azenomei
1.2-1.3 Strangers in Saskervoy
1.4 The Lords of Cil