"Where did you learn that?" Killian suddenly asked as he and Iris sat on the ground, watching Chrysanthe and Ryn from afar. The lone human in their group and the young elf were busy collecting medicinal and magical herbs Chrysanthe could use to brew some potions.
"Which one?" Iris rested her arm over her knee and turned to face Killian.
"The hellfire, I mean." The Night King answered. "Did Sera teach you that?"
Using hellfire consumed a lot of mana, and for Iris, who constantly needed to replenish her magical energy, it was crucial to learn efficient and powerful spells.
"No," Iris replied with a mischievous smile. "I picked it up during my time in the labyrinth with Asra. We encountered some monsters who were quite pesky with their regeneration abilities. I need to use something that could stop them from healing so quickly."
Killian raised an eyebrow, intrigued by Iris's newfound spell.