Tai Bai had to make a choice, and it wasn't a difficult thing to do.
She had already mastered the original powers of Gold, Wood, and Earth. All she needed was to properly refine and fuse them before finding trouble with Lin Yun again, against whom she would be unbeatable.
Now, facing Lin Yun in combat, she had a seventy percent chance of winning. She reckoned Lin Yun had yet to fuse with the original power left to him by Qing Nu, his strength limited to his own original power. Even if Lin Yun's fire countered hers, he could, at most, only have a thirty percent chance of victory.
Moreover, she held so many hostages.
But, it is best not to partake in matters where one is only seventy percent confident. Besides, Lin Yun is someone outside the grasp of destiny, just as he has no reason to recover his memory, yet he still did.
Anyway, she still had time, there was no need to rush at this moment.