"Day 300 - Another century of days comes and goes: it seems like so long since I escaped here. At some stage since my last entry, I attempted to return from whence I came: that form I was fleeing seems a fate far worse than the one I now face. However in my time since I arrived from the larger mine system, a cave in has occurred, blocking any further progress. I was forced to return and accept whatever end life has in store for me. I hear my aggressive little friends scratching on the door to my cell."
January 1, 1970
https://en.wikiquote.org/wiki/Penumbra_(video_game_series)