Cathal was king of Munster, and Fergal was king of Ulster, with an intense rivalry between them as both wanted to be high king. Fergals sister, Leah, fell in love with Cathal and sent him delicacies. Fergal summoned his wizard and ordered him to perform his mystical practices so that whoever eats them will never again have a days health for the rest of his life.When the apples entered Cathals stom...