Celestia, Luna, and Cadence

Guess what I'm starting this part with? A song!!

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Nearly everypony in Halloween Town saw the light in Jack's house, but they couldn't find Jack, and started singing

Something's up with Jack
Something's up with Jack
Don't know if we're ever going to get him back
He's all alone in there locked away inside

Never zei a word
Hope he hasn't died
Something's up with Jack
Something's up with Jack

Inside Jack's house, he was also singing

Christmas time is buzzing in my skull
Will it let me be, I cannot tell
There are so many things I cannot grasp
When I think I got it, and then at last through my bony hooves...