962 Second Group from the Combat Master Hall Arrives!

Hu!

A book materialized in the Library of Heaven's Path.

The seal had been whirring in action all along to fend off the killing intent from the otherworldly battlefield, so the Library of Heaven's Path was able to peer into its flaws easily.

Flipping open the book, the knowledge contained within swiftly flowed into Zhang Xuan's mind.

The seal had been created by an expert known as Qiu Wu. Possessing an extremely deep understanding of space, Qiu Wu had designed the seal to sever the space between the two worlds, making it impossible for anyone to breach. Even a 9-star master teacher would find it extremely difficult to destroy the seal.

This was also the reason it had been able to fend off the Otherworldly Demons for so many years.