The Marian Conspiracy is easily the highlight of the small number of Big Finish's output I have listened to so far (the others being Helicon Prime, Storm Warning, Sword of Orion and The Spectre of Lanyoon Moor). It's status as a pure historical works to its advantage, managing to craft a brilliant story. Evelyn also makes a superb first impression, and immediatly works wonderfully alongside Colin Baker's 6th Doctor. It's such a shame that these 2 weren't on TV together, as I believe they have the potential to rival pairings such as 2 and Jamie or 3 and Jo. Overall, a solid 9/10 = 4.5/5 story.