Hedgehog finds a city underneath her bed as she looks for her missing diary.
Tropes:
- Cargo Cult: The Monsters Under the Bed have built a whole society around Hedgehog and all the stuff the Monster steals from her. Her stray hairs are used as currency, and there's even a whole museum dedicated to her life.
- Creative Closing Credits: "Witches Lullaby" plays during the credits, indicating it's a "lore-building" episode.
- Puppy Love: It's revealed that Hedgehog has a crush on Max.
- Secret Diary: The Monster Under the Bed steals Hedgehog's diary and puts it up for auction. Hedgehog is worried Oscar will find out about her crush on Max.
- Weird Currency: Everyone in the city under the bed uses strands of Hedgehog's hair as money. Hedgehog uses this to her advantage by bidding every hair on her head on the diary.
- Your Costume Needs Work: The Monsters from Under the Bed think Hedgehog is just wearing a Hedgehog costume. They criticize Oscar's costume, but when he complains, they compliment him on staying in character.
