You were walking in the Minecraft Cave, before you come across the Deep Dark biome, then you heard the sound of screeching, from a sculk censor, as it screeches.

The Warden comes out from the underground of the sculk, as it's blue skulk antlers move a bit, trying to hear for any sound from anything, it is completely blind, and can't see you, as it slowly begins to walk, trying to find any noises, it's footsteps can be heard from miles, since it is over 12 Ft tall!