All these people were being monitored by the Mirage Dragon within the magic treasures they received from the Black Mirror. Indeed, the Mirage Dragon didn't control them but merely used the magic treasures to monitor their every action and thought.
Since they weren't controlled, the Heavenly Court couldn't spot anything unusual about these people unless they specifically searched for it.
As a result, the Mirage Dragon gained a substantial amount of intelligence, which was then passed on to the Black Mirror Army. With this information, the Black Mirror Army targeted and encircled the Heavenly Court's troops.
In a short time, the Heavenly Court's army suffered heavy losses.
However, after destroying those magic treasures, the Heavenly Court finally began to regain some ground.
Yet the vast expanse of the starscape had already fallen into the hands of the Black Mirror by eighty percent.
