Minecraft wiki entry for Exploring_an_ancient_city, associated text: Even the above strategies are not entirely foolproof, and it is still possible for something to go wrong and for the warden to spawn sometime during your explorations. You will know this has happened when you hear a loud growling noise and you can see the Warden rising up out of the ground when it spawns. If this happens, you can still somewhat easily evade the warden without dying. When the warden spawns, it may be very tempting to sprint away, but this will create noise that the warden will hear, causing it to give chase and likely kill you. You must keep sneaking and slowly move away, unless the warden has already begun chasing you. Avoid creating any noise if possible! The Warden is blind and instead operates by sound, using noise to pinpoint whatever it was that awakened it. If it cannot hear anything, then it just roams around randomly, sniffing the air, waiting for any noise to happen, though it can still detect an entity if they get too close to the Warden or bump into it. Over time, standing too close to the Warden will cause it to target you do to it smelling you, so escaping is important. If the Warden hears too much noise, something gets too close to it, or sniffs you too many times, it will give chase. You can tell if the warden has begun chasing you because it will lean forward and roar, before speeding up and rushing towards its target. If the warden is currently chasing you, try to sprint to somewhere the warden cannot follow, such as though a two block high gap and then try to get further away from there. If you didn't have a hole about 30 blocks long before, it will kill you using its sonic blast attack.