Chapter 686: Mazu Shelter No. 3, a Gift From Earth! Part 3

Guan Yuan ascended the stairs and saw Su Mo inspecting in front of the door, so she also glanced behind the door.

She immediately spotted an obvious massive hole in the back section's center of the corridor on the second floor.

The edges of the hole were disorganized and jagged, with visible traces of force used to create it.

"I suppose the mutant rat must have gone down from there."

Su Mo wore a surprised expression.

'The time it took for the rat to show up was extremely long and it showed zero flexibility to dodge the bullets shot at it.

'It wasn't originally on the first floor but was locked on the second floor.

'He forcefully made a hole in the floor to get down and charged at the door to attack the sudden intruders after falling through the hole.

"It definitely had no intelligence.

"Smashing this door would be much easier than breaking the floor!"