A while after I downloaded the update 1.16 I joined my sisters world were we were building houses under water. I went up to the surface to get some more wood when I heard some sort of howling and growling at the same time and to my surprise there were no wolves around to make the noise. Unfortunately we were so nervous and freaked out we deleted the world thinking it was herobrine. The next few minutes pasted and I had created a new world and do you know what happened? I heard the same sound again. I decided to try and catch whatever was making that noise, and I heard it again. Closer this time so I freaked out again and deleted that world to! Please help me and my sister in finding what's making that noise Mojang! It's really freaky!!!