“Stop!” a guard yelled, giving chase out the door. Someone else had pulled the alarm lever, triggering a siren from the building. The boy risked a glance back to see the guard gaining on them both. He mentally yelled at himself to go faster, already quite some distance behind the other. He couldn't keep up, clutching the manila folder to his chest for dear life. 

A single gunshot rang out and he stumbled over nothing, raw panic driving him on the girl’s path. He had no idea where they could go, since the laboratory was practically isolated in the middle-of-nowhere. His plan had already crumbled, ending at those glass doors. The rest had completely blanked his mind- this was a last-ditch effort to get away. Run.