Play Live Radio
Next Up:
0:00
0:00
Available On Air Stations
Watch Live

SECRETS OF THE DEAD: Cracking The Queen's Code

An image of Mary, Queen of Scots behind her coded letters.
© GEDEON
/
PBS
An image of Mary, Queen of Scots behind her coded letters.

Premieres Wednesday, Oct. 22, 2025 at 10 p.m. on KPBS TV / KPBS+

In early 2023, three amateur codebreakers announced they had successfully decoded the secret correspondence of one of the most tragic characters in European history: Mary, Queen of Scots.

SECRETS OF THE DEAD: Preview | Cracking the Queen's Code

57 encrypted letters detail the exiled queen’s efforts to free herself from imprisonment and gain advantage over her rival, Queen Elizabeth. Now, after four centuries, Mary’s urgent pleas can be revealed.

Advertisement
Codebreakers George Lasry and Norbert Biermann inspect the original letters of Mary, Queen of Scots with a representative at the National Library of France.
© GEDEON Programmes
/
PBS
Codebreakers George Lasry and Norbert Biermann inspect the original letters of Mary, Queen of Scots with a representative at the National Library of France.

Watch On Your Schedule: KPBS+ is a new free streaming video app designed for ease and enjoyment everywhere you watch including Roku, smart TVs and mobile devices. It’s locally curated for San Diego by the KPBS programming team. With a clean and intuitive design, discovering and enjoying KPBS and PBS content on-demand has never been easier.

You can also tune in live to watch our four TV channels in real time: KPBS, KPBS 2, Create, KPBS Kids 24/7. We also added a new channel - FNX (First Nation Experience).

Your KPBS Passport member benefit works on KPBS+ too! You’ll have access to even more great shows when you simply log in with your KPBS Passport account.

Actress portraying Mary, Queen of Scots writing her coded letters.
© GEDEON Programmes
/
PBS
Actress portraying Mary, Queen of Scots writing her coded letters.

Credits: A Lion Television Scotland and GEDEON Programmes production in association with ARTE France for BBC, in association with ZDF and The WNET Group, in collaboration with SBS Australia, Histoire TV and SVT Sweden. Narrated by Jay O. Sanders. Directed by Russell Barnes, Augustin Viatte, and Craig Collinson. Written by Augustin Viatte. Produced by Stéphane Millière, Valérie Guérin, and Helena Hunt. Executive Producers for Lion TV are Richard Bradley, Sarah Sarkhel, and Lisa Hazlehurst. For SECRETS OF THE DEAD: Julian Lim is producer; Benjamin Phelps is senior supervising producer; Stephanie Carter is executive producer; Stephen Segaller is executive in charge.

A coded letter written by Mary, Queen of Scots.
© GEDEON Programmes
/
PBS
A coded letter written by Mary, Queen of Scots.

SECRETS OF THE DEAD is an award-winning history and science PBS documentary series.

Advertisement

SECRETS OF THE DEAD on Facebook

Fact-based local news is essential

KPBS keeps you informed with local stories you need to know about — with no paywall. Our news is free for everyone because people like you help fund it.

Without federal funding, community support is our lifeline.
Make a gift to protect the future of KPBS.