Drakon of The Seven Armies – Chapter 2067

The black energy that surged from Lady Os this time resembled a sticky, black liquid within which countless faces seemed to howl, struggle, and wail in agony.

The temperature in the cave plummeted to freezing points abruptly, sending a freezing chill to attack Isaac, Hera, and Heartless.

In the blink of an eye, the black energy bursting from Lady Os enveloped the powerful attacks of Hera and Isaac. This terrifying evil force began to corrode Isaac's and Hera's powers like concentrated sulfuric acid.

Rocks on the mountain began rolling down rapidly. Hera could clearly feel the ground beneath her feet trembling.

"Mr. Garten, the cave is collapsing. We need to get out now," Heartless said.