The Pact of Tuduska was the first great standardization of magical practice in the continent of Addar and likely the first anywhere on Eamon. Part practical guide, part rulebook, and part philosophical treatise (along with occasional history, poetry, and even recipes), the printed pact had a profound influence on the practice of magic and is considered the "bible" for mages.

The pact is best known for codifying the Rites of Xanara which mitigate the effects of the Tide, and for inspiring the establishment of the Senosium of Tuduska, now better known as the Council of Mages.