I think the passage actually exists, and that it's just some guy embellishing on their journey into a new, unexplored cave passage.
It's also very possible that some creepy stuff did happen that his own mind heightened. The human mind is a strangely powerful thing. It can make you see, feel, hear, taste, or smell things that aren't even there.
However, being a true scientific skeptic I have to admit the possibility of the strange goings on in the cave being real. While there is no real evidence beyond his word, it is still a remote possibility.
A combination of several these explanations is also possible. I guess we will never know. All I know for sure is I'm fairly creeped out, and it's the middle of the day.
Anyways, sorry for the long read. I basically went through it too but yeah your best bet is to skim the bitter details of the whole process and hit the gist. I didn't want to give a summary because it ruins the impact of reading it. The same applies when you read a summary of a movie in theatres...
I was actually reading this at night too with my windows wide open and I heard like...rustling outside. Before I knew it my windows are closed and I'm tucked into bed trying to sleep.
Overall this was a fun read for me. I don't really mind if it's fake or not, it was still interesting to read.
From now on, no caves ! Either way I think this is true, bcs the guy DID post a bunch of photos there, and they seem to be the real deal.
Naruto, Bleach, One Piece, Fairy Tail, Claymore, Ao No Exorcist, Katekyo Hitman Reborn, Gamaran, Toriko, Vinland Saga, Gantz, Wolf Guy, Deadman Wonderland, Vagabond, Blade of The Immortal, Battle Royale, Zettman
I locked the door and kept the lights on.. lol
way 2 long and am fallin asleep tryin 2 read this will have 2 come back for this 1.