In the heart of the Inner Sea region stretches one of the oldest human empires still standing today: the mighty and mysterious land of pharaohs and pyramids known as Osirion. Hosting as many accursed tombs and treasure-filled ruins beneath its shifting sands as above, Osirion offers no shortage of adventure for characters of all sorts. From the cosmopolitan capital city of Sothis, seat of the Ruby Prince, to the desolate wastelands of the Osirian Desert, discover the might and majesty that lifted humanity out of the Age of Darkness and could potentially usher in a new golden age if unearthed from the past.
From the cosmopolitan capital of Sothis, Throne of the Ruby Prince, to the timeless ruins of the deep desert, adventurers brave accursed tombs and risk the wrath of forgotten mummies in this mysterious land of pyramids and pharaohs. Learn about every corner of Osirion, the backdrop of the exciting Mummy’s Mask Adventure Path, including dangers of the desert, mysteries of the richest ruins, deadly new creatures, and everything you need to run a campaign in this exotic realm.