The wall exploded on Casper's left side, wreckage flew against the opposite wall of the corridor. The prisoners got all in alert, raising their guns and pointing towards the hole opened in the wall.
Casper had jumped to the floor, trying to protect himself to be hit by anything. He raised from the ground and took several steps backward. He could see nothing on another side, not even Anton, because of the cloud of dust that formed in front of him.
His hair stood to end for some reason, and he knew that something big was going to happen. His heart beat faster and faster, he felt that the adrenaline was arising again. He controlled his breath and forced himself to take logical decisions. Casper needed to think now, reorganize, prepare for whatever that was going on.
He turned to his comrades, shouting at them: