Doings of Doyle - The Arthur Conan Doyle Podcast

This episode, we bring you two gems of a sort: Conan Doyle’s Sherlock Holmes play The Crown Diamond and its short story equivalent ‘The Adventure of the Mazarin Stone’ (both 1921).

You can read the play here and the story here.

The show notes will be available at https://bit.ly/DOD77sn (for all show notes, just replace ‘77’ with the episode number in question).

The episode will shortly be posted to our YouTube channel: www.youtube.com/@doingsofdoyle. Please like and subscribe.

Synopsis of the short story

Following his departure from Baker Street, Dr Watson, although busy with his medical practice, decides to call upon his old friend, Sherlock Holmes. Holmes’s page, Billy, informs the doctor that the over-worked detective is actually asleep in his room, although curiously there is a life-size wax dummy of his old friend positioned by the sitting room window. In the midst of this odd scenario, Holmes appears to explain that he is investigating a baffling and perilous case involving the disappearance of one of the crown jewels, the famed Mazarin stone. At this point, Holmes’s principal suspect, Count Negretto Silvius, calls at Baker Street and Watson is hastily dispatched to fetch Inspector Youghal from Scotland Yard. In the meantime, Holmes proposes to detain the elegant and dangerous jewel thief himself…

Next time on Doings of Doyle…

We begin our exploration of Conan Doyle’s breakthrough novel, Micah Clarke.

Acknowledgements

Thanks to our sponsor, Belanger Books (www.belangerbooks.com), and our supporters on Patreon and Paypal.

Image credits: Thanks to Alexis Barquin at The Arthur Conan Doyle Encyclopaedia for permission to reproduce these images. Please support the encyclopaedia at www.arthur-conan-doyle.com.

Music credit: Sneaky Snitch Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 License. http://creativecommons.org/licenses/by/3.0/

YouTube video created by @headlinerapp.

Welcome to Episode 76. We are interrupting our scheduled programme as we have an excellent opportunity to speak with two guests we have wanted on the podcast for a very long time, the creator and curator of the Arthur Conan Doyle Encyclopaedia, Alexis Barquin, and recent recruit to the Encyclopaedia, Mark Chadderton.

About the Encyclopaedia 

The Arthur Conan Doyle Encyclopaedia is an online repository of all works written by Sir Arthur Conan Doyle (fictions, essays, articles, poems, plays, lectures, letters, manuscripts...),but also all materials related to his life (newspaper articles, interviews, photos, movies...). The site is dedicated to promote the life and works of Sir Arthur Conan Doyle and to gather any materials related to the author. Visit the site: www.arthur-conan-doyle.com. 

Alexis Barquin

Alexis is the creator and curator of The Arthur Conan Doyle Encyclopedia, the world's most comprehensive online resource dedicated to Sir Arthur Conan Doyle. He lives in Paris, where he works as a web director for a market research company. He’s been a Sherlockian and Doylean for forty years, and was one of the co-founders of the Sherlock Holmes Society of France in 1993.

Mark Chadderton 

Mark has recently joined Alexis to help develop the Encyclopedia. He lives in Swanage, in Dorset, where he works for his local independent funeral directors, having previously been a civil servant. He writes for a national music magazine, runs three independent record labels and a book publisher, and is webmaster to a huge music archive website. 

Supporting the Encyclopaedia

You can donate to the Encyclopaedia here: https://www.arthur-conan-doyle.com/wiki/Support_Us. Donations above £12 receive access to the Search Fictions tool, which allows you to search the full text of 213 short stories, 24 novels and 16 plays, and a very fetching Arthur Conan Doyle lapel pin (black enamel cloisonné gold-colour, 0.75 inch / 1.9 cm).

Follow the Encyclopaedia on Facebook: https://www.facebook.com/TheArthurConanDoyleEncyclopedia 

Contribute a document, link or image (minimum 300 dpi please) by emailing mark@arthur-conan-doyle.com 

Next time on Doings of Doyle…

We return to Sherlock Holmes with the stage play ‘The Crown Diamond’ and its short-story alter-ego ‘The Adventure of the Mazarin Stone’.

Acknowledgements

Thanks to our sponsor, Belanger Books (www.belangerbooks.com), and our supporters on Patreon and Paypal.

Image credits: Thanks to Alexis Barquin at The Arthur Conan Doyle Encyclopaedia for permission to reproduce these images. Please support the encyclopaedia at www.arthur-conan-doyle.com.

Music credit: Sneaky Snitch Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 License. http://creativecommons.org/licenses/by/3.0/

YouTube video created by @headlinerapp.

Hello and welcome to episode 75. This time, we discuss one of Conan Doyle’s most important and influential early stories, ‘J. Habakuk Jephson’s Statement’, which appeared in the Cornhill in January 1884.

You can read the story here.

The show notes will be available at https://bit.ly/DOD75sn (for all show notes, just replace ‘75’ with the episode number in question).

The episode will shortly be posted to our YouTube channel: www.youtube.com/@doingsofdoyle. Please like and subscribe.

Synopsis

There have been many theories forwarded regarding the fate of the brig Marie Celeste, found drifting derelict in December 1873. But one man, Dr. J. Habakuk Jephson, knows the truth because he is the only known surviving passenger. Following service with the Union forces in the American Civil War during which he was badly wounded, Jephson settled down to regular medical practice in Brooklyn. But years of overwork, weak lungs, and the lingering effects of his war wound leave his own doctor to suggest recuperation via a long sea voyage. Unfortunately, the chosen vessel is Marie Celeste, whose passenger list is expanded by the last minute addition of the apparently wealthy Septimius Goring, a man of mysterious and sinister aspect and antecedents. At first, all goes well, until the captain’s wife and child are tragically lost overboard mid-Atlantic, following which the ship appears to be cursed…   

Warning

The story contains racist language and depictions, which we discuss. If this is likely to offend, you may want to skip this episode.

Next time on Doings of Doyle…

We return to Sherlock Holmes with the stage play ‘The Crown Diamond’ and its short-story alter-ego ‘The Adventure of the Mazarin Stone’.

Acknowledgements

Thanks to our sponsor, Belanger Books (www.belangerbooks.com), and our supporters on Patreon and Paypal.

Image credits: Thanks to Alexis Barquin at The Arthur Conan Doyle Encyclopaedia for permission to reproduce these images. Please support the encyclopaedia at www.arthur-conan-doyle.com.

Music credit: Sneaky Snitch Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 License. http://creativecommons.org/licenses/by/3.0/

YouTube video created by @headlinerapp.

In the second of our bonus episodes, Mark talks with historian and author Ollie Randall about his book Writers in Whites: How a group of literary cricketers changed English culture (London: Fairfield Books, 2026) which is released today.

Bonus episodes are released early to patrons. If you want to hear these episodes when they are first available, sign up at https://www.patreon.com/doingsofdoyle as a free or paid member.

Ollie Randall

Ollie Randall is a writer, historian and cartoonist. He completed his doctoral thesis, 'Cricket, Literary Culture and Englishness' in January 2026, which has become the basis for his book Writers in Whites (2026). Ollie has written articles for a variety of publications, including The Sherlock Holmes Journal, and most frequently the Times Literary Supplement. He has worked as the historical researcher for a former leader of the House of Lords, and as a tour manager on cultural tours. His second book, Lord’s and Maharajas – about the political intrigue and imperial crisis that shaped the origins of Indian international cricket – is due out in Autumn 2026.

Next time on Doings of Doyle…

For our 75th regular episode, we cover one of Conan Doyle’s most important early stories, ‘J. Habakuk Jephson’s Statement’ (1884). You can read the story here: https://www.arthur-conan-doyle.com/wiki/J._Habakuk_Jephson%27s_Statement 

Acknowledgements 

Thanks to our sponsor, Belanger Books (www.belangerbooks.com), and our supporters on Patreon and Paypal.

Image credits: Thanks to Alexis Barquin at The Arthur Conan Doyle Encyclopaedia for permission to reproduce these images. Please support the encyclopaedia at www.arthur-conan-doyle.com.

Music credit: Sneaky Snitch Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 License. http://creativecommons.org/licenses/by/3.0/ 

YouTube video created by @headlinerapp.

Hello and welcome to this bonus episode of the podcast. This time, Mark talks with author and researcher Philipp Schöbi about The Feldkirchian Gazette, the school newspaper edited by Arthur Conan Doyle while a student at the Stella Matutina in Feldkirch in 1875-76.

This interview is a taster of the full article on the Gazette that we published on the website in March 2026. You can read the article here:

https://www.doingsofdoyle.com/2026/03/httpswww.doingsofdoyle.com202603the-feldkirchian-gazette.html

Our thanks to Markus Geisser for translating Philipp's answers.

Bonus episodes are released early to patrons. If you want to hear these episodes when they are first available, sign up at https://www.patreon.com/doingsofdoyle as a free or paid member.

Acknowledgements 

Thanks to our sponsor, Belanger Books (www.belangerbooks.com), and our supporters on Patreon and Paypal.

Image credits: Thanks to Alexis Barquin at The Arthur Conan Doyle Encyclopaedia for permission to reproduce these images. Please support the encyclopaedia at www.arthur-conan-doyle.com.

Music credit: Sneaky Snitch Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 License. http://creativecommons.org/licenses/by/3.0/ 

YouTube video created by @headlinerapp.