Shen Yue frowned, a lot of things seemed very simple once you talk about the key points, however, if they were unsaid, it would be really hard to stumble upon the truth itself.
Nuanyu is not the kind of person who would take a cruise without a reason. She did at least two things while on the cruiser --- contacted Shen Yue and detected the actual location of the test subject.
The next part was quite straightforward. Shen Yue was gambling --- since there'd been someone impersonating the mummy, it would be simpler to leave the real mummy in the safe house. He was playing a trick of pretending to be defenseless.
However, even if Shen Yue was Zhuge Liang, Nuanyu was definitely not Sima Yi. After she saw through his deception, she directly ordered her subordinates to enter the safe house and take away the test subject, hence the reason why Shen Yue saw the mummy come to life inside this villa!