Pointy Hats

While I was walking my BLACK CAT, Dave, this morning, I saw a woman with a POINTY HAT.  She had a BROOMSTICK.  

"HALLOW", I said.

"You can't SPELL", she replied.

To break the ice, I told her a joke and she CACKLED.  

"Oh PUMPKIN!" she exclaimed, "that was MAGIC!"  

All of a sudden there was a THUNDERCLAP and a PUFF OF SMOKE.  I looked round and she was gone.  A FROG hopped away.

I think she may have been a cleaner... what do you think?