Shadows of Ambiguity    

However, Midnight Duchess wore a different kind of cloak. There might be a possibility of her having two, considering she had been in the game for four years and was one of the top pro players. 

She could definitely afford another one, even though equipment that hid appearances was considered expensive and very rare.

Xin didn't know how she had managed to dodge the spell when even Victor and the others didn't, and she was definitely not Hilda. 

Still, this might be his only opportunity to uncover her identity.

"Is something the matter?" Seraphim asked when Lord Scrooge didn't reply.

Xin shook his head, contemplating his next move, and said with an even tone, "What are you going to do?"

Seraphim tilted her head to the side. "What do you mean?"

"Now that we have been separated from the others, what do you want to do?"