Secrets of Sorcery

From publisher's homepage: This supplement includes the following material: - Do-It-Yourself Magic. Guidelines to adding new spells to the existing Helusan and Milondese styles. - School Building. Step-by-step instructions on creating entirely new systems of REIGN magic. - The Conjoining Priests of Setekesh. An example build, complete with giants, human sacrifice and the ready possibility of flying monkeys. - Creatures. Hey, everyone loves new monsters, right?