Below the hole lay a long flight of blue stone steps. The passage, originally pitch-black, was lit as brightly as day by a White Light Orb floating above Ximen Mei, who was already waiting at the entrance.
When she saw Wang Yu descend, she took a white disc from her robes, fiddled with it a few times with her fingers, and tossed it toward the entrance.
Thud!
The instant the disc landed, it released a dense cloud of white mist that concealed the entire entrance within moments.
Only then did Ximen Mei say to Wang Yu:
"I've temporarily sealed off the entrance with a Formation Disc. As long as no one comes close to inspect it, they won't notice anything unusual here for a while."
"You've thought of everything, senior sister. But I've always wondered what the difference is between Formation Discs and Formation Flags. Both are portable Formation Tools for setting up formations, and both seem able to deploy Magic Arrays anytime, anywhere." After complimenting her, Wang Yu recalled the three Azure Water Formation Banners in his Storage Bag and could not help asking.
"That question alone tells me you're a complete outsider to the art of formations, junior brother." Ximen Mei laughed.
"Oh? Why do you say that, senior sister?" Wang Yu blinked and asked.
"It's simple. Formation Flags and Formation Discs that can be deployed anytime, anywhere are really just Magical Artifacts with a few Restrictive Seal effects attached. At most, they offer simple concealment or protection.
"True Magic Arrays are different. Not only do they require specialized Formation Tools used by Formation Masters, but they also need particular heavenly timing and earthly advantage to be established. Generally speaking, they can't be moved so much as an inch."
"Moreover, true Magic Arrays possess boundless power, unpredictable variations,