Amie: Don't panic. If you panic, you won't notice the drums, or anything else that's important.
Also, remember that you have the Master Key. You don't have to run. You can open a door and lock it behind you.
Good point, but this thing is fast and she's wearing big stupid hazmat boots! She can hear it cantering along behind her, still gaining speed.
Whatever lead she has has almost completely vanished by the time she hits the end of the hallway.