Roach Fortress!

A sea of cockroaches. Yeah, time to fall back! I quickly bring my companions to a quick retreat! Can I destroy these creatures? Probably. Can I do so without a single casualty? Probably not. 

I need a way to protect my friends above all. Actually, I know! 

[Listen up everyone! We will now begin the most ambitious cockroach ever building project!] 

Of course, they don't understand something so specific. I'm just hyping myself haha. I slowly start digging the ground. I slowly extract cube-shaped blocks. This is harder than it looks. The rocks are extremely sturdy, unbelievably so. 

Then I slowly change the shape a bit so each block is the same size and is stackable. I add an indentation so the above blocks fit perfectly with the ones under.