In northeast Garund lies a country that is one of the oldest still-surviving in the world of Golarion. Based loosely on real-world Egypt, Osirion is a desert land full of ancient tombs and pyramids that hold artifacts and secrets dating back thousands of years into Golarion’s past. Osirion was the setting of a couple of early adventures published by Paizo (Entombed with the Pharaohs and its sequel, The Pact Stone Pyramid) and an early Player Companion supplement, Osirion, Land of Pharaohs, all of which came before the release of the Pathfinder Roleplaying Game and were thus written for D&D 3.5. There has not been a lot done with the location since then, but the upcoming adventure path Mummy’s Mask (starting next month) is set in Osirion, making now a ripe time to revisit the location. Osirion is one of the three countries looked at in Pathfinder Player Companion: People of the Sands (which I recently reviewed) and it also gets its own dedicated book in the Pathfinder Campaign Setting volume, Osirion, Legacy of Pharaohs.
This is a very informative book. It both updates and expands on the information in Osirion, Land of Pharaohs, going into considerably more detail than the earlier book (which, to be fair, is a much shorter book, so just doesn’t have the space that this one has). One of the most important qualities on which I judge a setting book is how many ideas it starts creating in my head. Legacy has simply flooded my head with ideas, enough to run three or four different campaigns set there, and so passes this criterion with flying colours. It’s densely packed with information on cities, adventure sites, denizens, and more.