Section B?

[extra11]

Spoiler below!

I think the "hole in the wall" is just a rather metaphorical description of a door. After all, Red is borderline mad.
If I interpret the maps correctly, section B is the one you're in before you get to section C, so you can visit it, I guess

thanks for your reply, i can't believe i was so dumb

Spoiler below!

the name 'section b' was somehow misleading, anyway it appears from the map that section b has 2 pathways, so today in the morning i had to go and check and found the other door completely shut, so i guess it all makes sense now

anyway, i need more of this game and can't wait for ep2, i guess i'll have to play the whole thing from scratch again, maybe at hard difficulty