The Moonscar is a high level Pathfinder adventure that takes place in an Abyssal jungle on Golarion's moon. Why is it the topic of Succubus Sunday? The main villain of the adventure is the Izmiria, the Insatiable Queen. This fiend is a 12th level succubus antipaladin of Nocticula, The adventure also features multiple alu-fiends and succubi (including a vampire succubus).
I've not actually played the adventure, but when I do, I'll give a more detailed look at it.