I creep behind you, silent, thin,131Please respect copyright.PENANAeRHJlwc2JH
Mimicking where you have been.131Please respect copyright.PENANApwxPIA31jl
But turn the lights off—poof, I’m gone!131Please respect copyright.PENANAmbfSXIl8zm
What am I?131Please respect copyright.PENANAcPJdtdHdXy
(Answer: A shadow!)131Please respect copyright.PENANAhlUzyde0I6