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"

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


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


Major Characters

Minor Characters



  • 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 few Easter eggs relating to the Turtles' Renaissance-era namesakes are briefly seen when Donnie explains the "sum knowledge of entire civilizations".
    • The Mona Lisa, a painting 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 with 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.




ve Rise of the Teenage Mutant Ninja Turtles episodes

1-0 2-1 3-0 4-0
Episode 1
Mystic Mayhem
Episode 2A
Origami Tsunami
Episode 2B
Donnie's Gifts
Episode 3A
War and Pizza
5-0 6-0 7-0 10
Episode 3B
Episode 4A
Repo Mantis
Episode 4B
Down with the Sickness
Episode 5A
The Fast and the Furriest
9 11-0 8 16
Episode 5B
Mascot Melee
Episode 6A
Shell in a Cell
Episode 6B
Minotaur Maze
Episode 7
Bug Busters
15 14 13 12-0
Episode 8A
The Longest Fight
Episode 8B
Hypno! Part Deux!
Episode 9A
The Gumbus
Episode 9B
Mrs. Cuddles
17 18 20 19-0
Episode 10A
Stuck on You
Episode 10B
Al Be Back
Episode 11A
The Purple Jacket
Episode 11B
Pizza Pit
22 23 21 24
Episode 12A
Smart Lair
Episode 12B
Hot Soup: The Game
Episode 13
The Evil League of Mutants
Episode 14A
Late Fee
25 26 27 30
Episode 14B
Episode 15A
Mind Meld
Episode 15B
Nothing But Truffle
Episode 16
Shadow of Evil
28 29 32 31
Episode 17A
Portal Jacked!
Episode 17B
Warren & Hypno, Sitting in a Tree
Episode 18A
Operation: Normal
Episode 18B
Sparring Partner
33 34 35 36
Episode 19A
You Got Served
Episode 19B
How to Make Enemies and Bend People to Your Will
Episode 20A
Mystic Library
Episode 20B
The Purple Game
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Episode 21A
Man VS. Sewer
Episode 21B
The Mutant Menace
Episode 22A
Turtle-dega Nights: The Ballad of Rat Man
Episode 22B
The Ancient Art of Ninja Hide and Seek
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Episode 23A
One Man's Junk
Episode 23B
Snow Day
Episode 24A
Cloak and Swaggart
Episode 24B
Jupiter Jim Ahoy!
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Episode 25
Insane in the Mama Train
Episode 26
End Game

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