The Slayers NEXT Season 1 Episode 6 Behold! Focus on the Real Enemy

The red priest Rezo suddenly appears in front of Lina and calls Zelgadis a traitor. Lina is surprised to know the relationship between the two. She also learns that Zelgadis is a synthetic human with the skin of rock, created by Rezo's evil experiment. Zelgadis has a grudge against him for it and revolted against him. Lina and Zelgadis barely find their way out, but Rezo's men attack them one after another. In the battle, Zelgadis tells Lina that Rezo needs the incantation of "the Stone of Wisdom" which Lina possess to heal his eyes. But what is the incantation of "the Stone of Wisdom"..?