Zhang Heng could tell that Master Kui was related to Freya because of her feathered cloak.
Although this feathered cloak wasn't as famous as Odin's weapon Gungnir or Thor's hammer Mikhail, it had appeared many times in Norse mythology. As long as one wore this cloak, they could transform into a falcon, not to mention it was a disguise that even the gods could not see through. Now, it seemed that Freya had turned this item into a supernatural one and given it to her agent.
Loki obviously did not pay much attention to the remaining three players other than Zhang Heng because all three of them were injured. Other than the doctor, who could barely move, one of Mouse's legs was so swollen that he could barely walk. As for Master Quinn, he was the most miserable. After being shot by Loki's incarnation, Sauk, and after the surgery, it was a miracle that she could get out of bed immediately.