A Worm Spell was a deadly undetectable spell that ripped the insides of a person apart, when it was triggered by the touch of healing magic.
Debt of BonesEdit
The spell was used on Erilyn Zorander as described in Debt of Bones. A quad attacked her, broke all of her bones, and planted the spell. When her husband, the First Wizard, Zeddicus Zu'l Zorander, found and attempted to heal her, he set off the spell. She screamed in pain while he knelt helpless beside her.
Soul of the FireEdit
The spell was also used on the Mother Confessor, Kahlan Amnell, at the end of Soul of the Fire. She was attacked by Rowley and his crew, after being laced with the spell by Sister Penthea. It was supposed to be set as a trap in case Kahlan lived through the beating, so when Richard found her and healed her, she would die. But Richard was warned about the spell by Du Chaillu and instead let her heal on her own.