i looked and it seems like maybe the builders messed up the lighting so a skeleton spawned i also have video - here it is https://www.mediafire.com/file/1acwpsfjpaogs62/skeleton_spaneing_n_eagler_craft_kit_pvp_severr.webm/file

sorry if  i type like a idiot

i think this a virus

Imagine haveing xray in your texture packs

You can here zombies and stuff inside the buildings you  are not meant to see inside