章 599: Chapter 599: Rebellion

In the empty room, a sudden heart-rending cry rang out, startling Song Jian. Even with his strong psychological endurance, the abrupt wail made his heart pound.

Fortunately, the cries slowly faded as the mysterious letter burned to ashes.

Song Jian collected himself, noticing a strange smile appearing on the wall in front of him. It looked as if it had been drawn with the smoldering ashes.

Song Jian was certain that before he took out the strange letter, there was nothing on the wall;

"Playing tricks!" Song Jian gave a cold hum and summoned the Crimson Fire Heart Ape Sword. He struck the wall fiercely. A golden Sword Qi flashed, making it feel like he was slashing at a mass of cotton, unable to channel his strength.

Suddenly, the sound of shattered glass echoed in his ears.

Just then, the wall unexpectedly caved in with a "rumble", revealing a pitch-black hole.

The black hole was completely dark; he could not make out what was inside;