The deepest cave I ever visited

Welcome to my post. My name is Eric Dusman. I am an experienced caver that has lots of curiosity and bravery.
I found many items and historical drawings in old caves from the stone age and a few ancient skeletons here and there.
I have made a living with selling these expensive items and venturing through these dark and cold caves filled with bats and spiders.
It wasn't an easy task either as I had to squeeze through many tight areas and climb on rock. I even had to dive underwater to get to some.
I thought it was all worth it back in the day until I excavated the Voided dark cave.
I invited a few of my friends to join me with protective gear and rope and even weapons just in case.
They agreed to come and they were excited to explore the unknown, but only one could come as the others had jobs to attend to.
The 4th of September he arrived at my house and I drove to the location with him. It was in Mexico at Chichén Itzá.
As we were on location my friend had a bad feeling.
David Dern
Are you sure that this is a good idea?
I looked at him confused and disapointed.
Eric
Don't worry, you will be safe with me, pal!
He smiled at me and we looked into the dark cave before us.
We then grabbed our weapons and rationed supplies and we walked right in.
Inside there were stalagmites and stalactites. The walls were definitely made out of rocks. The further we went the colder it became.
We had to descend in a large hole to continue so we tied a rope to a rock and climbed down. As we arrived at the bottom David seemed worried.
David
Do you hear that?
I listened and heard a frightening low-pitched scream. I thought it was the wind and brushed it off.
Eric
It does sound frightening, but I think it's just the wind howling.
I will upload the audio of the scream right away.
David
We must go back!
Eric
David, come on! You will regret going back as you will miss out!
David
Fine, I'll stay, but I am only doing this for you!
We kept walking and saw a narrow passage that we must squeeze through. I went in first as David followed me.
As I shined my flashligt in the distance I saw red and black cat-like eyes staring back at us. Then they vanished right as we arrived to the end of the narrow path.
Here's a picture.
The cave was spacious at this point and there were ores around and human skeletons. Upon further investigation it's been discovered that the bones were recent. Of course I kept it to myself so that David didn't run out of the cave.
Also these poor souls were eaten and only their bones were left on the ground.
He walked with caution to another narow path but this time we had to duck through it, and as we advanced through I saw a large, long-tailed creature with the same eyes I saw previously and it was dark.
Its arms were stretched out and dangeling down as it moved in front of us and stood still.
Me and my friend stopped moving as well and remained silent halfway through the narrow path.
The being moved on into the cave and we began moving again, but as I arrived to the end my friend was gone without a trace.
On the walls there were designs of monsters with unknown logos next to them. They eat humans to live longer and support their hunger- well, that's what I understood from the images.
I heard my friend scream and ran to his direction, but I slipped and fell in another deep hole and I broke my bones.
I am still lost and alone in this cave and I think I am seeing shadows move in the dark.
One is detailed and looks like the one I saw previously. It is staring at me and slowly aproaching and I can hear the cracking of its bones and its growl.
To whoever finds this, do not go further into this cave as it will be your last excavation.
Great, my phone is broken too. I think this ma-