"Xiao Xiao! Keep your voice down, I've been having insomnia lately!"
"Got it!"
...
Two days later, Wu Heng remained at the tavern in the guise of the owner.
Wu Heng leaned against the upstairs window, his gaze sweeping over the bustling hall downstairs, where the clinking of glasses and the hurried figures of the tavern staff seemed disconnected from him.
In these two days, he indeed did not quite fit the role of 'tavern owner,' as his performance in the tavern operations was rather alien.
Fortunately, the original owner, also a sentry from the Shadow Council, was not familiar with these processes either. Coupled with Wu Heng's excuse of not feeling well, he delegated these tasks to the staff, promising each of them extra pay, which made no one care that he was a fake.
The ghosts, however, were remarkably efficient.