Ok. I like your story ,but all can't happen in vanilla Minecraft even in a glitch. all those hidden mobs can't be there ,and all the pictures uploaded didn't prove anything. You either are faking this or using a mod. As you said you supposedly can't install a mod ,and it also seems a lot to fake even for attention. Honestly if you aren't using a mod you need to find someone to make a mod like this. My point is either admit your using a mod ,admit it's fake or provide more proof its not a mod and that it is real
-Silly123a49