I creep behind you, silent, thin,19Please respect copyright.PENANACzN1xqCHYM
Mimicking where you have been.19Please respect copyright.PENANASBQtY2lZJe
But turn the lights off—poof, I’m gone!19Please respect copyright.PENANA0V14d7zjPT
What am I?19Please respect copyright.PENANArrGnHQtH03
(Answer: A shadow!)19Please respect copyright.PENANAf8Lkpxf5OL