How did you get here? From somewhere in [CELIA - F PATH]
"As you open the grate a tunnel appears behind it."
You've reached a tunnel that is likely hanging in mid air, and start to feel like you are lost. If you want to pass this level, you will need a bright idea - and the source code suggests that you should take that literally. Once you find the answer, refer to the source code again for guidance on how to read it. Remember to refer to our tools page if you need some help seeing in the dark...
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“Increase the image brightness and read the letters clockwise.”
Remember to refer to the posts in Getting Started if you need some general tips.