Look! Look look look look look!
Those things ate the Mom's feet! I chased them around for a little bit but then they turned around and started chasing me and I didn't want to get eaten too so I jumped somewhere high so they couldn't get to me, and I felt bad for the Mom but I figured her feet were long gone by then so there was nothing I could do.
See, I got up where it's safe and watched as those things made her roll around and around and around and into the bookcases because they wouldn't stop and I think they rolled her right to the end of the hall and she probably smacked into the wall down there and then they turned her around and did it all over again and again and again. I kept waiting for them to eat her legs but they never did, instead she finally had enough and saved herself by sitting down and pushing on this thingy at the top and she made them throw her feet right back up.