Pathfinder Adventure Path #28:
The Infernal Syndrome
Infernal Syndrome cover
Publisher's Product Page
Author(s) Clinton Boomer and James Jacobs
Publisher Paizo Publishing
Price Print: $19.99
PDF: $13.99
Released December 2009
Type Adventure/Accessory
Binding Paperback
Pages 96 pages
ISBN ISBN 978-1-60125-198-5
Series Pathfinder Adventure Path #28
Council of Thieves 4 of 6
Follows What Lies in Dust
Precedes Mother of Flies
Artwork from The Infernal Syndrome

The Infernal Syndrome, an adventure by Clinton Boomer and James Jacobs, with support articles by Adam Daigle, F. Wesley Schneider, and Hank Woon, and fiction by Dave Gross, is the fourth chapter in the Council of Thieves adventure path and was released in December 2009.

All Hell Breaks Loose

In the bowels of one of Westcrown’s most esteemed halls of power lies an unfathomable evil, a terror beyond all reason and sanity, shackled and broken by the magic of a lost archmage. For years this menace has laid fuming, endlessly testing the bars of its prison, gathering its hatred and planning its revenge. Now the machinations of a deadly conspiracy have weakened the chains of this nightmare’s bonds, and in their growing cracks rise the flames of the damned and the promise of Westcrown consumed in hellfire. Can the PCs infiltrate the labyrinth of a madman to put an end to an evil beyond even the heroes of legend? And what foulness would seek to ruin all of Westcrown by gambling with its very soul?

This volume of Pathfinder Adventure Path continues the Council of Thieves Adventure Path, and includes:


Foreword: "Plugging in the Pit Fiends" by James Jacobs (4)

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1. "The Infernal Syndrome" by Clinton Boomer and James Jacobs (6)

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2. "In the Fiend's Grasp" by Adam Daigle (56)

An examination of fiendish possession of people, places, and objects.
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3. "Path of the Hellknight" by F. Wesley Schneider (64)

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4. "The Palace of Jubilations" (Hell's Pawns) by Dave Gross (74)

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5. "Bestiary" by F. Wesley Schneider and Hank Woon (80)

* adhukait
* cerberi
* Malbolgian cerberi
* spartolos
* uniila

Adventure overviewEdit

Level 9-10
Location(s) Cheliax

When a decadent noble mansion in the crumbling former capital city of Westcrown erupts into an enormous pillar of fire, the heroes of the Council of Thieves Adventure Path must explore the exposed chambers of the ruined estate to piece together the nefarious plot that has released a powerful devil into the treacherous foundation dungeons. Can they weaken the diabolical fiend enough to have a chance to defeat it, or will the heroes finally fall to the insidious plots of the Council of Thieves?

Council of Thieves Adventure Path

The Bastards of ErebusThe Sixfold TrialWhat Lies in DustThe Infernal SyndromeMother of FliesThe Twice–Damned Prince

Supplementary Products

Council of Thieves Player's GuideCheliax, Empire of DevilsPrinces of Darkness: Book of the Damned Volume ICouncil of Thieves Map Folio

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