Elina's Seven Mysteries Adventure

 is the episode of The Oh, the Places You'll Go! Show. It was released on October 4, 2023.

Characters:

 * Elina Shimmer
 * Connor Shimmer
 * Papa Barb
 * Laura Marche
 * Rose Gertrude
 * Karin Hanamiya
 * Cynthia Katsuragi
 * Melissa Kimyōna
 * Sabine L'amour
 * Olivia Tsuzurabara
 * Hilary Kobayashi
 * Eve Himefumi
 * Riley Takami
 * Rosa Hisakata
 * Iridiana Bergling
 * Sakura Sanryokyo
 * Jill Shizenkai
 * Touko Himeno
 * Krista Gingawa
 * Luna Azayaka
 * Kaori Watkins
 * Tulip Momoiro
 * Utau Kaminari
 * Merida Iseman (debut)
 * Madison Swift (debut)
 * Princess Bright Heart
 * Daina Undersea
 * Vanessa Milky
 * Haruna Atsu
 * Pegasus Panacea
 * Marie Valentine
 * Investigator Leader Gabriel
 * Andrea Iehisa
 * Agent Recon
 * Agent Augury
 * Agent Brillante
 * Agent Spicy
 * Raffica Amica

References:

 * /References

Transcript:

 * /Transcript

Trivia:

 * Merida and Madison made their first debut in the episode
 * In this episode, Elina and her friends prank the investigators in the haunted house.