Chapter 171: The great thief, treasure-seeking mouse

The treasure-hunting mouse controlled the group of mice to break through, moving all the soil along the way to the back like playing Pac-Man.

The tens of thousands of rats worked together to dig the hole at an unbelievable speed.

Soon, the rat army broke through the obstacles and dug up the floor tiles of the underground vault.

As the floor tiles were pushed up, the black rats were like sewage that had burst open the sewer, flooding the underground vault in an instant.

due to old crane's suspicious nature, he was afraid that the guards would take advantage of the situation to embezzle the money, so he had adopted automatic equipment when designing the underground vault.

The underground vault was impregnable. There were a total of three layers of iron gates separating it, and it was airtight.