An exquisite corpse of a dungeon created by 16 veteran adventure designers, the Emerald Spire is one of the largest and strangest dungeons in the Pathfinder world. I wrote level 11, the Magma Vault, a region inspired by the “fire level” common to so many video games—complete with disappearing, reappearing blocks over lava. This level also features the dungeon’s only dragons and, if the players are cagey, a chance to get their hands on a copy of The Book of the Damned. There’s also a special, leatherette edition of this book.
Available at Amazon and Paizo.