Who is "O"

[tonewww]

Now i have been thinking about that scrap of paper in the begining of black plague.

It Says: Between light and shadow, exists an entire world. That world is necessarily our own.

Get out. Now.

O.
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Who is this O. i think its that Neil Oswald guy in th messhall entrance

Post who you think it is

[MassacrMan]

I'd assume it was written by the tuurngait telling you to leave or face the concequences of interrupting them.

[Kedjane]

Neil Oswald probably, there's no mention of anyone else named "O".
Apart from being the chief attending chemist at the water cave I think he was also in charge of security. I can't remember if or where you find his body (is he the one with Greys report, who's blood you drain in the beginning of the game?) but I think he was locked in the same cell as Philip but managed to escape. I think he's the one who wrote all those notes ("watch your step" etc) and made the vents break and so on.