With An Yi leading the Hidden Guard of the Hua Family, Yun An's investigation with the Hidden Guard of Taizu progressed at twice the speed.
By dawn of the second day, they had found the secret mechanism leading to a hidden passageway.
This mechanism was exceedingly secretive and ingeniously constructed, located in an inconspicuous civilian residence within North Third Alley. Yun An and An Yi struggled to decode the mechanism, following Hua Yan's orders, took every possible precaution, and entered the passageway.
The entrance to the secret passage was very narrow; unexpectedly, once inside, they discovered a completely different world, with even more complex mechanisms. Fortunately, Yun An and An Yi were experts in this area. As they explored and decoded the hidden mechanisms within the passage, it took them more than two hours, but they gradually solved most of them.
