Chapter 274: Level 2! The Great Ma’s Invitation!

"A single biological virus was all it took to penetrate the sky defense barrier, and demolish humanity's 'indestructible' line of defense."

"Judging from the time when humankind migrated to the new world, it seems that the spread of the biological virus only began in Year 9."

"Now that I have information regarding the virus and so much time at hand, this biological virus…"

"Is nothing to be worried about!"

Su Mo felt a sense of relief when he thought about his previous entries into the ruins and how he had fought against the black dogs and mad cows and gotten away unscathed.

At the same time, Su Mo clenched his fist and thumped the ground as he thought about the other mutant creatures still trapped in the core of the ruins. He felt lucky that he had come directly to Ma Fei's shelter.

These living mutant creatures must not die just like that.