Short story by Richard Matheson. It’s interesting and quite sad.
A first-person “entry by entry” account of something/someone chained in their (supposedly?) parents’ basement.
By “its” own vague description and from what it says “mother and father” tell it, it is hideous in appearance, but that’s not made explicit.
Probably more interesting that way; leaves a bit to your imagination.
It’s a little TOO short, would be my only real complaint.
Grade: B