Jackson sat in his office at seven in the morning, having spent another sleepless night reviewing security logs and employee files, searching for patterns that would reveal the saboteur.

His desk was covered with printouts, his computer screen split between multiple spreadsheets and his eyes burned with exhaustion.

The office was empty at this hour, silent except for the hum of computers and the occasional sound of cleaning staff moving through distant hallways.

He heard the elevator ding and ...