Close Menu
  • Support Us
  • Login
  • Newsletter
  • News
  • Features
  • Interviews
  • Reviews
    • Video Games
      • Previews
      • PC
      • PS5
      • Xbox Series X/S
      • Nintendo Switch
      • Xbox One
      • PS4
      • Tabletop
    • Film
    • TV
    • Anime
    • Comics
      • BOOM! Studios
      • Dark Horse Comics
      • DC Comics
      • IDW Publishing
      • Image Comics
      • Indie Comics
      • Marvel Comics
      • Oni-Lion Forge
      • Valiant Comics
      • Vault Comics
  • Podcast
  • More
    • Event Coverage
    • BWT Recommends
    • RSS Feeds
Facebook X (Twitter) Instagram
Support Us
But Why Tho?
RSS Facebook X (Twitter) YouTube
Trending:
  • Features
    MCU Deaths

    The 8 Most Painful Deaths In The MCU (So Far)

    04/07/2026
    Blue Lock to the Pitch essay featured image

    From Page To Pitch: How Manga and Anime Drive Japanese Sports

    04/07/2026
    One Piece Chopper Live Action But Why Tho

    Everything To Know About Chopper In ‘One Piece’

    04/05/2026
    One Piece Season 2 Easter Eggs

    12 Easter Eggs in ‘One Piece’ Season 2 Explained

    03/30/2026
    White Fox in Marvel Rivals

    White Fox Bares Her Claws In Her ‘Marvel Rivals’ Debut

    03/23/2026
  • Apple TV
  • K-Dramas
  • Netflix
  • Game Previews
  • Sports
But Why Tho?
Home » Anime » REVIEW: ‘Moriarty the Patriot,’ Episode 21 – “The Sign of Mary”

REVIEW: ‘Moriarty the Patriot,’ Episode 21 – “The Sign of Mary”

Olive St. SauverBy Olive St. Sauver06/17/20213 Mins ReadUpdated:11/20/2021
Moriarty the Patriot Episode 21
Share
Facebook Twitter Pinterest Reddit WhatsApp Email

Moriarty the Patriot Episode 21

At long last, we check back in with Sherlock in Moriarty the Patriot Episode 21, and this time he meets John Watson’s fiancé: Miss Mary Morstan. The anime series from Production I.G. adapts the manga of the same name by Ryosuke Takeuchi and Hikaru Miyoshi. Based on the characters created by Sir Arthur Conan Doyle, the story follows the trio of the Moriarty brothers as they strive to weed out corruption in the British empire. They hope to overthrow the caste system from the inside and start a revolution. To do this, they become a “necessary evil” called The Lord of Crime. The manga series is published in English by VIZ Media and is available to read on their Shonen Jump app.

Get BWT in your inbox!

Subscribe to our weekly newsletter and get the latest and greated in entertainment coverage.
Click Here

Get BWT in your inbox!

Subscribe to our weekly newsletter and get the latest and greated in entertainment coverage.
Click Here

Sherlock is shocked to find out that John has been seeing a woman behind the scenes and is now engaged to her. Mary Morstan is finally introduced to the infamous detective, and Holmes is waiting for the catch. Nothing can get past him, as Mary reveals that in addition to wanting to meet her fiancé’s friend, she needs his help finding out what happened to her missing father. Sherlock remains suspicious, especially considering the case quickly turns into a literal treasure hunt.

While the show is dominated by its male cast, the writing had done decently well by Miss Hudson and Irene Adler when they appeared. With Mary Morstan in Moriarty the Patriot Episode 21, it is a bit of a different story. Nothing is wrong with her being meek, but we don’t really learn all that much about her. She feels more like a device to further the plot. Granted, in the show’s defense, she is supposed to have an air of mystery about her. However, since Mary isn’t very involved in the investigation with John and Sherlock, her characterization takes a backseat in the writing, and it shows.

Tuning back into Sherlock and John’s world for Moriarty the Patriot Episode 21 was a smart move. It is nice to actually solve a mystery along with the characters again. Generally, when following Team Moriarty, they are the ones elaborately creating a mystery for others. Tracking down legendary treasure is some good traditional fun. The show also adds a more comic layer to Sherlock and John’s relationship with the introduction of Mary. Not only is he shocked to find out, but now Sherlock is determined to make sure she is “worthy” of his partner in true best friend fashion. It adds a fun, relatable layer to the man.

Moriarty the Patriot Episode 21 feels a lot more like a traditional Conan Doyle story, which works great as a check-in on Sherlock and John’s lives during The Lord of Crime’s adventures. It is nice to see another lady in the cast, but unfortunately, Mary Morstan has yet to be given enough time to become her own character outside of a catalyst for this episode’s case. It is a very enjoyable episode, although it may not be the most memorable for viewers. It is a solid outing for the anime, nonetheless.

Moriarty the Patriot is streaming now on Funimation.

 

Moriarty the Patriot Episode 21
  • 7.5/10
    Rating - 7.5/10
7.5/10

TL;DR

Moriarty the Patriot Episode 21 feels a lot more like a traditional Conan Doyle story, which works great as a check-in on Sherlock and John’s lives during The Lord of Crime’s adventures. It is nice to see another lady in the cast, but unfortunately, Mary Morstan has yet to be given enough time to become her own character outside of a catalyst for this episode’s case. It is a very enjoyable episode, although it may not be the most memorable for viewers. It is a solid outing for the anime, nonetheless.

Share. Facebook Twitter Pinterest LinkedIn WhatsApp Reddit Email
Previous ArticleREVIEW: ‘BRZRKR,’ Issue #3
Next Article REVIEW: ‘Fruits Basket: The Final Season,’ Episode 11 – “Goodbye”
Olive St. Sauver

Olive is an award-winning playwright with BAs in English and Theatre. At BWT she is a manga and anime critic, with an additional focus on mental health portrayals in media and true crime.

Related Posts

Dorohedoro Season 2 Episode 4 But Why Tho 1
8.5

REVIEW: ‘Dorohedoro’ Season 2 Episode 4

04/09/2026
Gals Can't Be Kind To Otaku Episode 1 Ijichi
5.0

REVIEW: ‘Gals Can’t Be Kind To Otaku?’ Episode 1 – “Can A Gal Be Kind To Otaku?”

04/08/2026
Marriagetoxin Episode 1
9.0

REVIEW: ‘Marriagetoxin’ Episode 1 — “The Poison Master’s Search for a Bride”

04/08/2026
Noa in Liar Game Episode 1
8.0

REVIEW: ‘Liar Game’ Episode 1 — “The Legendary Con Artist”

04/06/2026
One Piece Episode 1156
8.0

REVIEW: ‘One Piece’ Episode 1156 — “The Long-sought Elbaph! The Big Reunion Banquet”

04/06/2026
Daemons of the Shadow Realm Episode 1
8.5

REVIEW: ‘Daemons of the Shadow Realm’ Episode 1 -“Asa and Yuru”

04/05/2026

Get BWT in your inbox!

Subscribe to our weekly newsletter and get the latest and greated in entertainment coverage.
Click Here
TRENDING POSTS
Robby and Crus in The Pitt Season 2 Episode 14
7.5
TV

RECAP: ‘The Pitt’ Season 2 Episode 14 — “8:00 P.M.”

By Katey Stoetzel04/09/2026

The Pitt Season 2 Episode 14 features some great patient stories as it tries to wrap up some of the day shift drama, to some success.

Woo Do-hwan in Bloodhounds Season 2
7.5
TV

REVIEW: ‘Bloodhounds’ Season 2 Punches A Little Below Its Weight

By Sarah Musnicky04/05/2026Updated:04/05/2026

Bloodhounds Season 2 is a fast, action-packed race from start to finish. Yet, it doesn’t hit the height of the stakes of its previous season.

Vincent D'Onofrio in Daredevil: Born Again Season 2 Episode 4
10.0
TV

RECAP: ‘Daredevil: Born Again’ Season 2 Episode 4 – “Gloves Off”

By James Preston Poole04/08/2026

Daredevil: Born Again Season 2 Episode 4 is the moment when the series goes from great superhero TV to essential superhero TV.

Phoebe Dynevor in Thrash (2026)
6.5
Film

REVIEW: ‘Thrash’ (2026) Goes Down Easy

By Jason Flatt04/10/2026

Thrash (2026) is pretty simple as far as thrillers go, even with its hybrid plot and complete genre switch from thriller to all-out shark action.

But Why Tho?
Facebook X (Twitter) Instagram Pinterest RSS YouTube Twitch
  • CONTACT US
  • ABOUT US
  • PRIVACY POLICY
  • SUBSCRIBE TO OUR NEWSLETTER
  • Review Score Guide
Sometimes we include links to online retail stores. If you click on one and make a purchase we may receive a small contribution.
Written Content is Copyright © 2026 But Why Tho? A Geek Community

Type above and press Enter to search. Press Esc to cancel.

But Why Tho Logo

Support Us!

We're able to keep making content thanks to readers like YOU!
Support independent media today with
Click Here