The culprit

At the moment that Casper pointed his index finger towards Anton, accusing him, the prisoners around him seemed to stop for one second, like they had some sort of realization. They switched from a mode to another all of a sudden, and it reaffirmed even more what Casper had guessed about the middle-aged man. 

"I know what's up with the Project Mimir now, and what you have made so far, Anton. It took some time for me to discover, and more to accept, but in the end, facts are just facts." He walked slowly towards the man, with an inquisitive look on his face. He passed the astonishing figure of Alfar, who was standing there looking to his own hands, without knowing what he did. 

However, Anton remained calm. One could see inside his darting eyes that he knew he was cornered, but the old man did nothing but keep staring at Casper nonchalantly.