Mystic Library
Rise of the Teenage Mutant Ninja Turtles episode
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Season Code: 037
Episode: 20A
Original airdate June 29, 2019
Written by Russ Carney & Ron Corcillo
Producers: Vladimir Radev
Directed by Sebastian Montes
Voice Direction Rob Paulsen
Supervising Director  Alan Wan
Storyboard Artist: Kevin Molina-Ortiz
Story Editor: Tony Gama-Lobo
Episode chronology
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"How to Make Enemies and Bend People to Your Will" "The Purple Game"

Rise of the Teenage Mutant Ninja Turtles Season 1
September 17, 2018 - November 16, 2019
List of Rise of the Teenage Mutant Ninja Turtles episodes


  1. Mystic Mayhem
  2. Origami Tsunami
  3. Donnie's Gifts
  4. War and Pizza
  5. Newsworthy
  6. Repo Mantis
  7. Down with the Sickness
  8. The Fast and the Furriest
  9. Mascot Melee
  10. Shell in a Cell
  11. Minotaur Maze
  12. Bug Busters
  13. The Longest Fight
  14. Hypno! Part Deux
  15. The Gumbus
  16. Mrs. Cuddles
  17. Stuck on You
  18. Al Be Back
  19. The Purple Jacket
  20. Pizza Pit
  21. Smart Lair
  22. Hot Soup: The Game
  23. The Evil League of Mutants
  24. Late Fee
  25. Bullhop
  26. Mind Meld
  27. Nothing But Truffle
  28. Shadow of Evil
  29. Portal Jacked!
  30. Warren & Hypno, Sitting in a Tree
  31. Operation: Normal
  32. Sparring Partner
  33. You Got Served
  34. How to Make Enemies and Bend People to Your Will
  35. Mystic Library
  36. The Purple Game
  37. Man VS. Sewer
  38. The Mutant Menace
  39. Turtle-dega Nights: The Ballad of Rat Man
  40. The Ancient Art of Ninja Hide and Seek
  41. One Man's Junk
  42. Snow Day
  43. Cloak and Swaggart
  44. Jupiter Jim Ahoy!
  45. Insane in the Mama Train
  46. End Game

Season 1Season 2

"Mystic Library" is the 35th episode (Episode 20A) of Rise of the Teenage Mutant Ninja Turtles. It first aired on June 29th, 2019.


The Mad Dogs plumb the depths of a mysterious hidden library in search of a way to rescue Mayhem.


Major characters

Minor characters


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  • Donnie: But Raphael, a library is a treasure hunt. You never know what gems you may find along the way!

  • Donnie: What? Would a child have a platinum library card? Would a child have won the national library competition 3 years in a row? Would a child be an expert on Dewey decimal mathematics? I can divide by biographies!

  • Mikey: *sharp inhale* ECHO! I REGRET NOTHING!


  • A Pac-Man easter egg appears very briefly in an artwork on the wall in the O'Neil apartment. The artwork is arranged to resemble Pac-Man eating pellets, but Pac-Man has green skin and an orange bandana (like Mikey) and the pellets are slices of pizza.
  • A few Easter eggs relating to the Mad Dogs' Renaissance-era namesakes are briefly seen when Donnie explains the "sum knowledge of entire civilizations".
    • The Mona Lisa, a painting created by Leonardo da Vinci is seen with a blue bandana and holding a Katana.
    • Italian Renaissance painter Raffaello Sanzio da Urbino, also known as Raphael, is seen wearing a red mask.
    • Michelangelo's statue of David can be seen wearing a pair of orange shorts.
  • The phrase "New toy!" said by a Yōkai kid, then Mikey, is a reference to Disney/Pixar's Toy Story 3 when a Jack-in-the-box says the same phrase whenever a new toy arrives at Sunnyside Daycare.
  • Donnie's library rap was written to match the rhythm of the rap track from the 2012 TV series theme song.
  • The train from "Insane in the Mama Train" makes an appearance as a toy in the kiddie room.
  • Raph swallowed his phone when April called him for the last time in the library.




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