What do you think is the #1 monster in the Frictional Games Penumbra & Amnesia?

[Googolplex]

Now I never played Justine, but in case of faster monsters, all I can say is to move into a room and close the door. Then you have a few moments to hide or run some more. That or put yourself in between heavy boxes.

Lol, the monsters came through the doors.

And they doesn't disappear like in the main game. They stay hunting you for all time.
And when I put in between heavy boxes, then I can't getting out of there. The monsters doesn't go away.