the siren went off, meaning something was stolen/bad is going to happen. You were in the library, you slide under behind the desk.

a scientist had injected himself with a vile of something that was being worked on..

you heard screams and saw blood platter on the walls.

he laughed. “telling me to retire,after I gave my life to this job for 3yrs..haha” he looked at the desk. “come on out, I can hear you breathing.”