After watching the two of them flee, Ed said, "This should keep things under control for now. Let's go, Natsu. It's time to settle your score."
"No! I'm going to finish this S-Class Mission!" Natsu shouted from the side, but it was useless. Ed restrained him in no time. Just as Ed was about to take him back to the gathering point, Gray, still wrapped in bandages, rushed in.
"Leon! Stop what you're—Ed? Where's Leon?" Gray stared blankly at the scene before him. "You mean that kid who uses the same ice magic as you? He ran away." Ed looked somewhat surprised. "Erza actually let you come here? How did you manage that?"
Gray placed his right hand over his chest and said to Ed with a serious expression, "I already told Erza. I have to defeat Leon and protect Deliora's seal, even if I die here."
"Hmm... Since you've said that, and Erza agreed, I don't have any objections. Let's go, then. Take me to see Deliora. I've only heard of the demon that ravaged the northern lands—I've never actually seen it. But I remember it was sealed by a powerful wizard, right?" Seeing Gray's resolve, Ed released Natsu and prepared to inspect the sealed demon.
"Yeah. My master, Ur, sealed it using Iced Shell. Come with me. Erza and the others are still at the entrance, so we'll go together." Gray nodded, led Ed and Natsu to meet up with Erza, then headed straight for Deliora's seal.
Looking at the enormous demon surrounded by solid ice, Ed gestured with his hand. "Are all the demons Zeref left behind this huge? Which do you think is stronger, this thing or Lullaby?"
Gray froze at Ed's words. He recalled how utterly Ed had crushed Lullaby, then remembered Deliora's unstoppable destruction