Fang Bai moved like a ghost of the night, his form blending seamlessly with the darkness as he approached the Wind Blade Sect's headquarters.
His speed was extremely fast, and he had completely concealed his aura, making less noise than even a mosquito in flight.
"Whoosh..."
A gentle breeze swept past the treetops outside the high walls of the Wind Blade Sect.
Fang Bai's figure drifted with this breeze, landing outside the courtyard wall of a steward.
He swiftly circled the courtyard, carving array runes into the ground and inlaying spirit stones, successfully setting up a simple isolation formation.
This kind of isolation formation could shield the leakage of martial artist aura and all sounds for a short period, so even if a battle erupted in the courtyard, outsiders wouldn't notice right away.