Iconic Welsh novel set to hit stage
A bold new adaptation of Welsh classic Wythnos yng Nghymru Fydd is coming to theatres across Wales in Autumn 2026
Frân Wen in collaboration with Galeri are thrilled to announce that a new Welsh-language stage adaptation of the iconic novel is currently in development and will tour Wales in Autumn 2026.
Mared Llywelyn’s production reimagines Islwyn Ffowc Elis’s classic novel, offering a vision of Wales in the distant future. The new stage version will place the story firmly in the present day, exploring identity, language, belonging and the future of Wales through the eyes of a young central character.
The novel, first published in 1957, was the first major science fiction work for adults to be written in the Welsh language.
This will be Mared Llywelyn’s second commission with Frân Wen, following the acclaimed success of Croendena in 2023.
Full performance dates, venues and creative team will be announced in early 2025.
In a world where extremism manifests itself every day, Wythnos yng Nghymru Fydd puts the spotlight on that. It will be a challenge to adapt this iconic novel, but I believe the novel's central question is as relevant as ever - what can we as individuals do to shape the future?Mared Llywelyn, Playwright:
About the Production
The adaptation will be bold, contemporary and rooted in Frân Wen’s commitment to original Welsh-language storytelling. The production will tour to theatres across Wales, with further details to follow early next year.
The production is supported by the National Lottery through the Arts Council of Wales. Our thanks to Y Lolfa for granting the rights that have made this adaptation possible.
We are delighted to be bringing this iconic novel to the stage. It is a book that has been central in defining Wales’s literary identity, and its reimagining today feels both important and timely.Gethin Evans, Director & Artistic Director of Frân Wen
As Mared tackles a story that engages with a world in a period of intense change, and how relationships survive and navigate major transformations, we feel the strength of this new interpretation.
Working with Mared once again is a privilege; she brings the voice, energy and vision that adapting such a masterpiece for the modern age deserves. We cannot wait to share this work with audiences across Wales next autumn.
Photo of Mared Llywelyn by Mefus Photography
