The Underground War Billions of Years Ago

Even though his eyes had already been burned into two black holes, Meng Chao still reached out and gently brushed his hand across his comrade's eyebrows.

He closed his eyelids and sent him on his eternal journey home. 

Then, Meng Chao stuck two fingers into his comrade's eye sockets. 

He felt the texture of the skull inside and used a little force to separate the skull that had been burned to a crisp.

Meng Chao focused on studying his comrade's skull, especially the dried brain matter that was distributed inside.

His rich battle experience led him to a conclusion.

This comrade of his had not been attacked from the outside. He died purely due to excessive brain consumption. His brain cells were overloaded for a long time, and it caused his body to spontaneously combust.

Meng Chao recalled the pain he felt when he deduced the future numerous times. It was a pain that pierced his heart and made his head burn.