Contest Time!

Guess what everyone! It is time to play THE KATIE EXCERPT GAME! For the last month I have posted Scary Excerpts from THE McCORY CHRONICLES: KATIE McCORY AND THE DAGGER OF TRUTH.
Here is your question:
What sound caused the children in the attic to become transfixed on Halloween Night?
The contest will end at midnight Halloween Night.
Everyone who post the right answer will be put in a drawing for these Beautiful, Magical, Tarot Cards!