From the publisher's website:
Spell Law: Of Channeling explores the miraculous gifts of the divine. From the forgotten rites of lost religions to the dutiful chants of young acolytes, open the realm of Channeling fully to your prayers!
Inside ...Of Channeling you'll find over 50 spell lists with hundreds of spells. Plus all of the character information needed to expand the core Channeling professions of your Rolemaster Fantasy Role Playing game, including the Animist, the Healer, the Sorcerer, the Paladin, and other spirited adepts! Attack tables and critical strike tables give results for all kinds of channeling attacks. And summary tables make all of the details easy to manage!
Now when the evil priest begins chanting, you know that your soul itself is at stake...