"No need to return to the camp!"
The sudden voice made both Marcus and the shadowy figure's pupils contract slightly. A savage killing intent erupted from the figure at once, nearly making Marcus collapse to the ground in front of him.
"Who is it?!"
The murderous shout swept through the area like a shockwave, kicking up piercing bursts of air. Marcus cried out, clutching his ears as his entire face turned pale, his eyes filled with shock and disbelief.
Although he knew his master was powerful, he had never imagined he was this terrifyingly powerful.
This... this was no longer strength that a ninth-order powerhouse could possess!
Could it be...
Just as Marcus was struggling to come to terms with his own thoughts, a rain-like glimmer began flashing in an open space not far ahead within the cave!
The figure and Marcus abruptly turned their heads, staring fixedly at the center of the light. The next moment, two figures emerged from it and appeared before them! Upon seeing those two figures, both the shadowy figure and Marcus changed expression. The figure's face darkened, while Marcus staggered back two steps in horror, trembling as he pointed at them and shook his head desperately, as though unable to believe his own eyes.
"Marcus..." An aged voice rang out with fury.
"I never thought it would really be you!"
"Th-Thunder King..." Marcus could no longer deny what he saw, yet he howled in disbelief, "Why are you here?!"
"Why..." Thunder King sneered, looking at Marcus as though he were already dead.
"I would also like to know why you are here!"
"I... I..." A bead of sweat ran down Marcus's forehead. For a moment, he did not know what to say. He could only stand there, retreating step by step with a helpless