From publisher blurb: Stare Into the Void! Staring into the void, the derro are waiting in their twisted cities to oversee the descent of the world into insanity and destruction. But a few of them seek a wider realm... The strange little derro are an unlikely choice for player characters (and this supplement provides much fuel for NPC anti-paladins and savants!), but they can be a wonderful change of pace in any underdark campaign or any game with a wide scope. Advanced Races: Derro gives you everything you need to play one of these subterranean dwarves who has seen too much, starting with derro PCs abilities, culture, quirks, and richly expanded Pathfinder RPG rules. This 19-page sourcebook includes: Racial stats for lesser and full Derro PCs, plus 8 alternate racial traits from Vermin Speaker to Beloved of Madness 3 extremely metal new spells: Facemelt, Madfire, and Skullsplitter! Complete Minor Madness tables 5 new racial feats, plus derro gear such as poisoned nets and strange magical items Includes Age and Weight Tables, plus suggested names for your derro PC or NPC! 3 archetypes including Fist of Madness (Monk) and Shadow Antipaladin, plus the Derro Savant bloodline It's all here, pick up Advanced Races: Derro today, and see beyond the walls of sanity!