I flagged this as requiring a prerequisite in that I really think it pays off more meaningfully if you are more familiar with staples of the Classic era of Doctor Who than not.

This is a pretty cool audio. It was great to have The Brigadier in a Sixth Doctor story, and feels like the story pays it off reasonably well. Evelyn feels like she has a lot to do and gets a lot of pretty memorable moments here. The larger ideas of the story and the music/effects were a lot more mediocre, but were entertaining enough this wasn't a bad experience or listen. Still, I liked quite a few scenes and some of the details around the historical content in this story. It makes good use of our history professor companion, and I think this is just a nice treat for Doctor Who fans overall.