C180 Deepest hidden mechanism

"Halt!" The moment she shouted, everyone jumped in fright, and turned to look at Mo Feng.

"The five grids in the middle can't be stepped on anymore!" Mo Feng pointed to the five boxes in the middle of the two rows, which were also the ones that had been stepped on the most.

"Sir Mo Feng, don't scare everyone, these two rows of boxes are the safest, we have already walked through them many times