Spell Law, 1st Edition was the original magic system for Iron Crown's Rolemaster fantasy role-playing system. This version came in a box with four booklets including an introductory book also called "Spell Law" and a book for each of the three magic realms: Of Channeling: Book I, Of the Essence: Book II, and Of Mentalism: Book III. Note: This 1981 version was reprinted as Spell Law, 2nd Edition in 1984 along with 3 pages of optional rules.