You Have Completely No Idea What Happened

"Level thirteen spell?" The female assistant's face turned pale with shock.

Over the last few decades, it could be said that she had seen and experienced many things, but she had never heard of a level thirteen spell. Until now, the highest supreme secret magic she had ever heard of was only level ten.

A level ten spell was already transcendent magic with power that completely wouldn't lose out to a hundred spirit power nuclear bombs.

A level thirteen spell… A spell that was a whole three levels higher? How terrifying was that?

Cold sweat trickled down the female attendant's cheeks; she didn't dare follow this train of thought.