Death had a strength beyond human comprehension. At the very least, it was beyond Alex's comprehension. She had shown herself to be capable of using something as difficult as Sword Heart, and that was only because she was fighting against someone so much weaker than her.
What if she had more? What if she had reached a step beyond Sword Heart and entered the realm of Dao Sword? What if she had gone even beyond that and reached the step known as being One with the Sword?
Even if Alex was incredibly wrong about her talent in the sword, and she only did know Sword Heart, it was still far stronger than what he was capable of.
Alex didn't know how strong her sword had to be before it could be comparable to a Celestial's attack, but she was much closer to it than Alex could ever hope to reach in a short amount of time.
"Death is the strongest person I know of," Alex said. "She is likely the only one who can break through the prison wall."
