After finding out the location of the nearby rescue point, Heidi covered her head and left on her own, but Duncan had no intention of dealing with the "official personnel" there—not least because he now had Sherry by his side, a girl capable of summoning Profound Demons who clearly didn't want to deal with the Deep Sea Church.
As Duncan watched Heidi's figure gradually fade into the distance, he sighed gently, then turned to look at Nina, "Are you hurt?"
"No," Nina was still somewhat frightened, having been subconsciously gripping Duncan's sleeve all this time. Only now did she suddenly let go, and then, somewhat surprised, she looked at Duncan, "You haven't said yet, why were you at the museum?"
"I happened to be nearby on business," Duncan said with a smile, "and then suddenly I heard the museum was on fire, so I came to rescue you."