The battle escalated beyond technique into pure conceptual warfare.
When Number Four attempted to unmake the concept of duration, Nian Shi simply made it so duration had never been unmade.
When Nian Shi tried to age Number Four out of existence, the Uncreation being made aging itself a foreign concept that couldn't affect him.
Yun Lintian watched, his understanding of power being rewritten with each exchange. This was extremely precious information.
"Your silence speaks volumes," Nian Shi said conversationally as he parried a void thrust with a temporal paradox. "Yin couldn't have acted alone from within the seal. There must be... intermediaries."
Number Four's attacks became more frantic, the Mark of Uncreation pulsing violently.
Nian Shi's smile turned predatory. "No matter. If you won't tell me your secrets..."
The Hourglass of Beginnings inverted, its sands flowing upward. "I'll extract them directly from your essence."