In front of a dilapidated and abandoned factory, the shadowy hound "A Dog" stared with its hollow eye sockets at the collapsed buildings, as if trying to observe this ruin from another dimension. Sherry stood beside A Dog, nervously looking around. After glancing at Duncan's expression, she quietly asked, "A Dog, are you sure there’s no ‘residual pollution’ here?"
"If you mean the kind of ‘chemical leak’ that people usually talk about, then don’t worry. The pollution here probably disappeared years ago," A Dog replied in a raspy voice. "But if you're talking about some kind of extraordinary ‘pollution,’ then I can't say for sure."
"Did you find anything?" Duncan asked from the side.
"…No, really nothing," A Dog lowered its head slightly. "I saw a brief moment of… ‘fire’ just now, but now there’s nothing. That might have just been some kind of ‘echo,’ a memory left behind by this ruin… Many extraordinary powers leave similar traces in the real world, but to figure out what kind of extraordinary power it was… we might have to go in and take a look."
"Then let’s go in," Duncan nodded and stepped toward an opening in the abandoned factory. "You all follow me."
Sherry hesitated for a moment but then followed. A Dog shook its head, the dark chains clinking as it curiously and cautiously watched Duncan ahead. "Why are you interested in something that happened eleven years ago? Oh, of course, I’m just asking out of curiosity. Someone like you must have your own…"