Magical Research, Artefacts & Optional Rules

from the preface to the second edition:
This Volume Three is the shortest and contains all the rules concerning the enchanting and managing of items (Hit Points, Structural Points, and Saving Throws for Objects). In particular I have tried to expand the rules system for the creation of constructs and golems, making it possible for clerics to also enchant them, simplified the creation of magic items with new simple tables for random generation, and suggested new optional rules for magic in all its forms, as well as rules to introduce a tool to measure the faith of priests and followers of the various divinities (Piety) and generic rules to allow multi- classing, to play the demi-human races to 36 th -level and run NPCs in a simpler but equally functional manner.