Lan Wangji manages to feel simultaneous irritation and fondness, which -- admittedly -- is a well-worn combination for him. He could not have weathered this investigative event alone, nor would he have wanted to. Claudius was far better-equipped than he ever could have been to tease out information with a smile and some clever words. Still, he is glad to be nearing the mansion again and to be close to finished with this. "Thank you for the demonstration," he adds, referring mostly to the entropy detection device.