Tribulation Clouds Gathering

"What is that above the forbidden ground? Clouds...?" Just as the two elders in front of the forbidden ground of the Hollow Thunder Family turned their attention back towards the forbidden ground while curious about what the old master might be up to, one of the two could not help noticing the increasingly large and dark clouds that had started to gather in the air above the forbidden ground.

"That is weird, with the formation in place around this entire place, there should be no way for clouds to form above the forbidden ground… Unless…"

"Hm? Do you know something?"

"Yes, the only way for clouds to form above the forbidden ground where the old master is located, is if the clouds are tribulation clouds, as there is no way for the formation to prevent something like tribulation clouds from entering… But… For a tribulation cloud to be forming above the forbidden ground just after the old master went into secluded cultivation-"