Monty's Trick or Treat (Marshall's Park #8‪)‬

Everyone has been the victim of Chris' pranks in the run-up to Halloween, and he doesn't appear to be in a hurry to stop. Despite almost getting one of the park's employees fired.

Finn decides Chris needs to be taught a lesson and what better way than to give him a taste of his own medicine? With a little help from his friends, he sets about organizing the prank to end all pranks - on an epic scale - using Chris' biggest fear against him!