"A not-unreasonable assumption." Alastor nodded his agreement with her initial assessment.

He listened carefully, idly reaching out to refill her drink as needed. An ear twitched thoughtfully the whole time.

"And this Gloom was what damaged that sword. From what I saw when I fought alongside Link, that blade is made to withstand a lot and has the ability to channel energy quite well. Assuming it doesn't just contain its own energy in addition to what could be added." He waved a hand. "Magical artifacts aren't my area of expertise but I'd be a fool not to put in at least a little study of them.

"You said they share similar sources. I take it that means you defeated the true Calamity Ganon. I don't suppose he turned out to have a close relative who was more powerful...?"