When the Son saw Tang Xiao toss the Dagger of Mortis before the Father, his expression changed drastically. He had never expected Tang Xiao to betray him!
The reason he had chosen Tang Xiao to help him wound the Father was because he had already noticed the intense conflict between Tang Xiao and the Father and daughter.
The Father had an obsessive fixation on the balance of the Force, so he would inevitably imprison Tang Xiao until he had completely uncovered his secrets.
The Daughter embodied the Light Side Force, and Tang Xiao had spent the past few days arguing with her as well. He was furious that she had imprisoned him and potentially subjected the Duchy of Dawn to the threat of war, and he hated her deeply for it. The Son had been watching all of this.
That was precisely why the Son believed he had an opportunity to win Tang Xiao over. Of the three Ones, only he could meet Tang Xiao's condition of letting him return home.
But how could he have known that Tang Xiao, who knew the plot, had chosen another path to escape Mortis—killing all three Ones!
Completely unaware of Tang Xiao's true intentions, the Son naturally made the wrong judgment.
And now, only one thought remained in the Son's mind—he absolutely could not allow the Father to obtain the Dagger of Mortis!!
The moment the Dagger of Mortis appeared, the Father would immediately realize that he had sent Tang Xiao to do this. The Father would surely become wary of him and might even use the Dagger of Mortis against him!
In fact, this was the most crucial and fundamental part of Tang Xiao's scheme—
Although they were called the Father, Son, and Daughter, these three Ones were not father and children