Boom! Boom! Boom! Boom!
From afar, the drumbeats grew louder and louder. Spiderweb-like cracks had already appeared across the seal. Nie Tong and the others stood before it, their faces grim as they continuously poured power into the seal, seemingly unable to hold on much longer.
"What's going on?" Nie Yun's expression turned grave.
According to Nie Tong's previous estimate, the seal should have lasted at least three more days. If everyone exerted themselves to maintain it, it could have held for five. How had it become like this after barely a day, on the verge of shattering at any moment?
Fixing his gaze on it, Nie Yun saw that the seal's rumbling was growing ever more intense, like densely rolling thunder drums.
When they had come last time, those rumbles had affected only experts at the Sect Master level at most. Now, even a Sovereign would find it hard to endure if they got too close!
Most likely... stronger experts have arrived on the other side, or... they used some secret art to explosively increase their strength!
Nie Yun's heart turned cold.
Judging from the enemy's might, they had definitely received reinforcements or found some means of increasing their power. Otherwise, it would have been impossible for the seal to crack so quickly, even with the Asura King and the others doing everything they could to stop it.
Crash!
Just as he was pondering this and preparing to step forward to help, a piercing shriek rang beside his ears. The seal, covered in spiderweb cracks, jolted, and a pitch-black fissure appeared.
"Not good!" Nie Yun's face changed.
As long as the seal was merely covered in spiderweb cracks and had not broken, it was still a whole and could last for a while longer. But once a fissure appeared,