"I appreciate your help, but I don't know if they deserve an entire wall of blades", Valerion giggled. "But let's move on from that". He picked another paper ball, and threw it at Adrien; this time he thought of a hole - something like a black hole; a void where the ball would be trapped, with no escape. The ball hit the boundary, and there was a flash - a flash of black, as if all the light of the room had suddenly been sucked away; Adrien lowered his head and held still - in but an instant, it was all over. The paper ball had disappeared, and Valerion was now staring at him with his eyes open wide.

"What was that", he said, "a void?".