C17 Being Questioned!

Xu Guoqiang fixated on the book's cover, his surprise palpable.

Was there a math prodigy among his students?

Had Tang Haodong, a late bloomer, suddenly revealed his mathematical brilliance?

Tang Haodong's rapid improvement was one thing, but self-studying to a university level? That was beyond Xu Guoqiang's comprehension.

The only explanation Xu Guoqiang could muster was genius