"The creature that lurks in the deep dark is the warden. It cannot see, but it sure can hear (and smell!) so don’t make any comments that you don’t want to be held accountable for. Or any noise at all, because that will probably be the last thing that you do."

"These blocks are also arriving in the snapshot, and if you make any noise near them they will write a very stern letter that you can expect in five business days. I’m lying – if you so much as cause a vibration near them they will shriek really loudly and, obviously, terrifyingly which in turn summons the warden."

"It also detects vibrations, but instead of screaming it emits a redstone signal. Stay stealthy and bring some wool with you to help muffle your vibrations, but whatever you do, do not step on the sculk sensor."

-- Minecraft.net article, "A Very Scary Snapshot"


"Among these blocks is the sculk sensor which, if you make any sort of sound in the environment, alerts its sister block, the sculk shrieker."

-- Minecraft.net article, "Meet the Warden"