Despite her own secrets having already been directly spoken by Lu Chen, Bai Qingqing still stubbornly said, "Prince, this servant came to North City on her own, with no relation to His Majesty. This servant doesn't understand why the Prince would think so."
Bai Qingqing really couldn't understand how the North Prince could possibly know her identity and mission.
Even if the intelligence network of North Prince Mansion was very developed and had spies in the Capital, at most, the North Prince could have only found out that she was a Shadow Guard, absolutely not that she was the Deputy Commander of the Shadow Guards.
Even the Great Commander of the Shadow Guards didn't know she was the Deputy Commander of the Shadow Guards, yet the North Prince knew.
Furthermore, when the Sum Emperor gave her the orders, it was done in her presence, and the orders hadn't passed through a second pair of hands or lips; theoretically, there shouldn't have been much chance of a leak.