This story takes place during the Fourth Doctor and Romana I's search for the Key to Time. In this instance, the tracer has sent them to the estate of Lady Ferril, widow of Lord Ferril. Lady Ferril was a celebrated astronaut who, due to injuries, has been retired from any duties with NASA. But what happened on her last mission? And why does she have so many statues and suits of armour on her estate?
This is a companion chronicle, narrated by Mary Tamm mainly, but also in parts by Madeleine Potter as Lady Ferril. I found the over the top nasty villainess screeching voice a bit wearing, but Mary Tamm as Romana was on top form. While her voicing of Tom Baker as the Fourth Doctor is a bit off, she narrates and performs well enough to capture the nuances of the script - the Fourth Doctor's humour and eccentricity, Romana's naivety regarding earth customs, the horror of the carnage being let loose in the local village, and Lady Ferril's plans for the Earth. Purists might wonder at the use of the Key to Time in this `missing' story, as it quite clearly had a story arc which incorporated all its component pieces at the time of the original Fourth Doctor tv screening, but that is neatly developed and deal with in the course of the story.
Highly recommended for any Doctor Who fan.