Trickery Treat (Charmed #41)

It's Halloween, and Piper is busy decorating the Manor, which has become the neighborhood hot spot on the most bewitching night of the year. Meanwhile, Paige decides to use the party as a chance to honor the dead. She casts a spell that creates a portal for a clan of leprechauns...and other wandering spirits.

The guests are thrilled and impressed with the realistic effects, but Phoebe, Piper, and Paige soon realize that they have a big trick to deal with: one not-so-friendly ghost going out of his way to turn the Manor into a haunted house. The Charmed Ones must stop this evil soul with a vengeance before he takes the life of one experienced ghost hunter who knows his story and has met him before...

Corresponding: Post-season 8

Fantasia