A wall to scale.

It was the second last day of winter, and there was barely a mutated beast in sight. The mecha warriors were all but relaxed and hanging out with the common people outside. The snow was already melting and traces of cracks in the frozen lake were so visible. Children were outside playing with the last remaining bits of snow. Everywhere one looked, life appeared to be normal and work had resumed even for those industries which had been closed down. On the blue star, there was no one indoors, hiding and waiting for an official announcement from the emperor to tell them to resume normal life and come outdoors. 

Scarlet was on her way to the temple which had recently acquired an abnormal feature that everyone called a miracle or an abnormality but if you asked, not even the monks could explain what happened. One day, in the middle of night, when all was quiet and calm, the ground started shaking and out of it rose a black wall crafted from a material unknown to them.