In 3637 AR, Karamoss, the "Machine Mage", assaulted Absalom, constructing a huge metal citadel in a single night. The citadel rose from the rocky ground like a red metallic growth. Within hours, hordes of hobgoblins emerged from the citadel and laid siege to the city. The city repulsed the attack for three weeks, but then the gates of the Red Redoubt of Karamoss opened to disgorge legions of metal warriors equipped with deadly weapons and guided by malign intelligence.
The city was saved when its druidic order, Druids of the Shaded, repulsed the metal men with powerful magic. For two years the city was under siege until a final counterattack brought Absalom's army to the walls of Red Redoubt. In the slaughter that followed, the upper floors of the citadel were destroyed along thousands of his automatons, but the mysterious wizard-artificer was never found.
Paizo published a major article about the Red Redoubt of Karamoss in Chapter 5 of Dungeons of Golarion.
- Anthony Pryor. (2011). Red Redoubt of Karamoss. Dungeons of Golarion, p. 46. Paizo Publishing, LLC. ISBN 978-1-60125-304-0
- Erik Mona, Mark Moreland, Russ Taylor, and Larry Wilhelm. (2011). Pathfinder Society Field Guide, p. 11. Paizo Publishing, LLC. ISBN 978-1-60125-305-7
- Paris Crenshaw, Mark Garringer, and Ron Lundeen. (2014). Bestiary. The Choking Tower, p. 89. Paizo Inc. ISBN 978-1-60125-688-1