Scary

It's super late at night. I heard something and started banging on the door so mommy opened it up. I ran out to this area that has some old furniture that is going to be thrown away and found something scary. My super good nose had me following it and I was determined to find it. Mom ran inside and got a flashlight. She started moving some stuff and then... it growled at mom. I started growling back at it because nothing threatens mom like that.... but my hero time was up. She grabbed me and ran back into the house.

I wonder what that scary thing was. Do you know?