(prefacing this to say that a key on my keyoard doesn't work for some reason, the second letter in the english alaphaet so excuse the spelling errors)

This isn't a joke or creepypasta or a prank. This is all 100% real. The story starts some years ago when I was playing an earlier version minecraft and I was creating a mineshaft looking for Diamond and Iron ores. When I turned around and was heading out cuz I ran out of torches and my Pickaxe health was low and close to gone, I saw a flash of dark run across the screen left to right. It creeped me out cuz I don't do multiplayer and don't allow others to play with me since they often destroy my worlds for the heck of it. Fastforward several years to today.. I was just playing with my son and we were deep in an underground chasm making our home after finding quite the haul in diamond and he tells me he saw something moving around the area that summons the Warden ( a fairly recent enemy in minecraft) Thankfully I have it on peaceful so no summoning it) at first i thought it was a at (the flying creatures) Then I saw it move deeper in the chasm. So we hurriedly made our way up the path and every so often I kept seeing it some ways ack ehind us... The weird thing is that on the way TO the chasm the deepslate that i had placed after running out of torches had change. they weren't in the original position i had placed them in.. almost causing me to get lost.. So.. Does Null entity stay permanently on your world? I don't wanna delete my world ecause I worked so hard to find the iome we uilt in and have already set up the house.. If this is a developers idea of a Halloweeen prank.. NOT funny. if this is a glitch from the updates that have een rolling in..... please fix it.. again this isn't a joke an arg or prank.. I really need answer's here ecause if i can't get one im deleting it and recreating a new one.