I need help (Serious and Dire)

So we was just throwing our weekly party. My husband has befriended a hollow. Though this was something similar. It normally walks on all fours but can stand up. It is ungodly tall. It’s is attracted to sound and makes a clicking sound. It looks very similar to a hollow. Please if anyone knows what this is and or how to rid it. Thank you!

This thing just ripped out a piece of my husband’s leg and left randomly. So incase it comes back please any help is appreciated!

Update I think we are taming it, it came back.