Swan told Gale everything that happened in the castle while he was away. She also mentioned the gray mammoth tusk, a unique item that could detect any poison.
Gale immediately interrupted her story when she mentioned that item, "Hold on, how could Long Xiurong have a gray mammoth tusk? It comes from a gray mammoth in the north continent, and they are very rare."
"Y-you know about the animals in the north continent?" Swan asked in disbelief.
"Of course. I went to the north continent once to see if it's a place worth settling down, only to find out it's mostly barren, frozen tundra, so there's no point in conquering it," Gale said. "So, how could that woman have access to such a unique item?"