Halloween Woods
S2:E22
2015
IMDb
Poppy and friends are carving pumpkin lanterns when Owl reveals that Halloween is his favorite holiday and invites them to Halloween Woods in costume by train (with Poppy dressed as a cowgirl, Alma dressed as a fairy, Zuzu dressed as a pirate, Owl dressed as a wizard and Mo dressed as a skeleton) where they meet a bat named Basil.