Above the Tianyan Sword Sect, the sky suddenly split open with a blood-red rift stretching across a hundred miles, like a wound slashed by a giant god.

From the swirling tribulation clouds came a roar like that of an ancient beast, and purple-black lightning surged within the clouds, each surge causing the surrounding mountains to tremble.

Such a shocking phenomenon immediately alerted the entire Sword Sect.

"What’s happening? Who triggered the Thunder Tribulation?"