The lives that were lost in the false war between the Twilight Blood Sect and the Jade Heavenly Palace were real. Those were sacrifices made in order to keep the wicked sect away from suspicion.
Even the Young Palace Lord was sacrificed for this purpose, making it evident that the facade was more important to those in power than the lives of a few, regardless of their importance.
And even besides the war, the Twilight Blood Sect had committed many wicked deeds. However, their cultivation technique remained unknown.
The sect itself was known for being reclusive, and even the officials from other wicked powers had never seen its Sect Master. For occasions like this one, a representative was always sent.
There were rumors that the Sect Master had been injured in a conflict with the Jade Heavenly Palace, while others believed he was in the middle of cultivating towards a major breakthrough, but nothing was made official.