Citadel of the winged Gods is the second adventure of B&B (for all that ask himself why Skinner of.... isnt the second adventure-Skinner is only a savage tale, no adventure).
It has a large battle in the beginning, a encounter with a strange human that ask for help finding home, great enemys, deep jungle, poisonous snakes and so on. It has the Sword and sorcery feeling all over it.
I havnt plaed it yet, but it sounds like a lot of fun.
Like most buyable adventure there are some rails visible. Especially the large battles in the beginning are well executed but somewhat meianingless, and the second battle is destinied to fail, so the heroes
have to flee.
The mysterious human is fatigued, but a mighty NPC. Something that is hard to do without overshadowing the PC, but in the two main fights he has some "magic" to do so he could stay in the background. In a sword and sorcery setting with rare magic this could work really fine. And he has some memorable scenes in the finale.
This avdenture is really fun, if you like sword and sorcery you should buy it.