The heroes at last emerge from the trackless jungles of the Mwangi Expanse to discover the vine-choked lost city of Saventh-Yhi, ruined outpost of the ancient kingdom of Azlant. With seven spear-like monolith towers peaking above the verdant canopy and crumbling causeways echoing with the savage cries of unknown predators, the city promises untold wealth to those brave enough to claim it. But the heroes are not alone, for their allies and enemies among Sargava's colonist government, the Pathfinder Society, the Aspis Consortium merchant league, the Pirate Lords of the Shackle Isles, and the mysterious assassins of the Red Mantis also have designs upon the treasures of the City of Seven Spears, and the race is on to plunder the riches of the city's many adventure sites. A Pathfinder Roleplaying Game adventure for 7th-level characters, this volume continues the highly anticipated Serpent's Skull Adventure Path, in which the heroes fight their way through a treacherous jungle to discover and plunder an ancient lost city. This volume features a gazetteer of the jungle-choked lost city of Saventh-Yhi, with tips for expanding the site to add depth to the campaign as well as an overview of the primitive ju ju magic of the Mwangi Expanse natives. Plus five all-new monsters in the Pathfinder Bestiary, new fiction in the Pathfinder Journal, and more!