Wearily her father trudged down behind her, scooped her up and carried her back up to try again. She had been so eager to play in the basement, but each time she tried descending the stairs, she stumbled and fell. The father watched as she attempted once more, and this time, she made it down without issue. He breathed a sigh of relief and turned to go back upstairs. But as he reached the top step, he heard a bloodcurdling scream. Rushing back down, he found his toddler at the bottom of the stairs, seemingly thrown. With a shock, he realized that there was someone or something else in the house, and it wasn’t friendly.