(from the back of the book)
Magic is one of the basics on which the fantastic world of Avneturien resides. Wizards, witches and druids form big societies, magic creatures live in distant places. mystic artifacts of past times urge to be decrypted, worlds beyond fairy gates to be discovered.
Sphärenkräfte is an anthology for "Wege der Zauberei", the ruleset for amgic in Aventurien. The four adventures deal with the mysteries of the wizards' guilds and the limbo, the problems of witches in Weiden, the battle against a strange plague of swamp monsters and the intrigues in an old magic college of the Tulamids.