There is a bit of confusion between two haunted walks happening in Carlisle this year.
One is the Haunted Woods, which I believe is the same haunted woods that happened out there last year. It is a $20 event that runs multiple nights throughout the season, and has a website:
The second is the Haunted Trail which is a one-night event on October 21 as part of the Carlisle Hometown Pride event (I think):
Hope this helps!