Stories Audio Drama The Fourth Doctor Adventures Episode: 1 2 3 4 The Crowmarsh Experiment 1 image Overview Characters How to Listen Reviews 3 Statistics Quotes Overview Released Thursday, January 18, 2018 Written by David Llewellyn Runtime 75 minutes Time Travel Alternate Reality Tropes (Potential Spoilers!) AI gone wrong Location (Potential Spoilers!) Earth, England, London Synopsis When attacked on an alien world, Leela falls unconscious… only to wake in another time, another place. She is in the Crowmarsh Institute on Earth, in London, in 1978, and everyone is calling her Doctor Marshall. They tell her the world she has known is but a fantasy, a delusion, and that this place is the one that is real. Surrounded by familiar faces on unfamiliar people, Leela knows what is true and what is false. But how long can she believe when everyone around her says it’s a dream? What’s really happening here? Listen Listened Favourite Favourited Add Review Edit Review Log a repeat Skip Skipped Unowned Owned Owned Save to my list Saved Edit date completed Custom Date Release Date Archive (no date) Save Characters Fourth Doctor Leela Sisyphus Show All Characters (3) How to listen to The Crowmarsh Experiment: Big Finish Audio The Fourth Doctor Adventures Series 7 Volume 1 Reviews Add Review Edit Review Sort: Date (Newest First) Date (Oldest First) Likes (High-Low) Likes (Low-High) Rating (High-Low) Rating (Low-High) Word count (High-Low) Word count (Low-High) Username (A-Z) Username (Z-A) Spoilers First Spoilers Last 3 reviews 3 June 2025 · 358 words Review by Ryebean Spoilers This review contains spoilers! When I saw the trailer, this reminded me of a few things - the title reminded me of the Sontaran Experiment, and even includes the Sontaran name Strang, and the cover reminded me of the Egyptology theme within Pyramids of Mars. Despite this - it is able to stand on its own two feet as an original and fun story. I think this story would work extremely well as a Companion Chronicle. Whilst Tom Baker does feature in this heavily, the Fourth Doctor does not and his imaginary counterpart could easily have been replaced with anyone else in Leela's life - her father from the Face of Evil, as an example. It's a thrill to have Jameson take the lead role for this story, because she is absolutely killing it as Leela. When I first met her in the Face of Evil, I wasn't overly keen on her, and if I hadn't been experiencing Big Finish's audio range at the same time, I probably wouldn't have had the same opinion of her, but almost every story just knows her character and manage to portray it so well, within both the writing and the acting! There's not really a villain, per se, unless you count Crowmarsh and the robots as villains themselves. Each "antagonist" has a personal connection to Leela, such as the forgettable Marshall from an untold story that definitely does not exist at all in any Fourth Doctor series ever, but it's fantastic to see how they all tear Leela apart to see them. I was expecting a more Egyptian vibe from the location, but the story itself completely subverted my expectations, being in a laboratory - it's clear that each writer knows just the right location to suit Leela - jungles and wildernesses bring out her instinctive side, whereas she's a fish out of water in places like hospitals and cities, and it works so well as she tries to fit in for the Doctor's benefit. This story is a standout in the Fourth Doctor Adventures - it doesn't rely on 70s nostalgia, but it would fit into the era so well as developing Leela's character! Ryebean View profile Like Liked 0 6 May 2025 · 22 words Review by Rock_Angel S7 of the 4das are off to a weak start I liked the concept of this but hated the execution of it Rock_Angel View profile Like Liked 0 17 May 2024 · 188 words Review by thedefinitearticle63 Spoilers This review contains spoilers! This is part of a series of reviews of Doctor Who in chronological timeline order. Previous Story: The Sons of Kaldor The first part is very experimental, having voice actors play different characters than usual is not new to Big Finish, but it usually doesn't have any explanations in-story which easily makes this story stand out. It's also nice to have a story where the Doctor doesn't really play an active role in the story, he talks to the characters through various methods, but isn't actually physically present as himself. The names of the false characters being based on other characters from the 4DAs is a nice touch that I nearly missed at first, and it allows them to develop Leela's character and her romance with Marshall. This feels reminiscent of stories like the library two-parter and "Amy's Choice" with the involvement of too-good-to-be-true fictional realities that the characters have to choose between. Overall it's a very heartfelt story, with a solid mystery running through and it plays with the format a bit which are 3 things I really enjoy in these stories. Next Story: The Mind Runners thedefinitearticle63 View profile Like Liked 0 Open in new window Statistics AVG. Rating44 members 3.78 / 5 Member Statistics Listened 90 Favourited 6 Reviewed 3 Saved 5 Skipped 0 Quotes Add Quote Submit a Quote