I was playing on the map, and zombie with block field appeared as usual. I was always killing him but once, i didn't killed him, and he was acting like normal zombie but at one moment he died. But not by entity dissolver or just cuz yes. He were killed by unknown entity called #gm13_npc_hydra. I saw that again just 5 minutes before i did this post, and he was killed by that agaib, but this time he was coming somewhere even when he saw me, he was turning around but doing nothing about me. I was too stupid cuz when he was already in mirror room i tested if he will attack me, and he did and stopped coming to somewhere and just died to hydra again. Does someone know something about hydra and why did zombie was coming to somewhere without stop? I have screenshot of that entity