Paizo Publishing will release Monster Codex for the Pathfinder RPG on October 22nd.  The 256-page hardcover will retail for $39.99.  It will include chapters for 20 monsters:
  • Boggard
  • Bugbear
  • Drow
  • Duergar
  • Fire giant
  • Frost giant
  • Ghoul
  • Gnoll
  • Goblin
  • Hobgoblin
  • Drow, by Alexandre Chaudret
    Kobold
  • Lizardfolk
  • Ogre
  • Orc
  • Ratfolk
  • Sahuagin
  • Serpentfolk
  • Troglodyte
  • Troll
  • Vampire
Each will include archetypes; over 10 new stat blocks; new rules like feats, spells, and magic items; advice and tips for gamemasters; and templates for customizing the monsters.