From publisher blurb:
The Golden Scroll of Justice lets you bring your old-school RPG into a whole new world of wuxia/kung fu action based on Chinese mythology, history, and folklore. The book contains:
Two new PC races: the shanxiao (monkey-man) and gouren (dog-man)
Two new character classes: the wu and the fangshi, along with guidelines on how to use your existing classes in a mythic China setting
Hundreds of new spells
Rules for kung fu that fit seemlessly into the existing combat and skill system, but still allows for cool "cinematic" moves
New weapons and armor
New magic items
New monsters
And much more!
The rules are designed to be completely modular; take what you like, leave what you don't. Want fangshi and gouren but not the kung fu system? No problem. Everything will still work fine.