How did the gang get from London to Yorkshire so fast anyway?
By 1893, rail service between London and York had been in place for decades (including
The Flying Scotsman). Based on a timetable for the "Down Special Service," a train could have gotten them there in
about 3.5 hours. Of course, I understand that York is merely a city in county Yorkshire.
Regarding the episode, I generally liked the story (setting aside the fact that everyone in the tower would have been incinerated by the rocket blast). I surprised to discover that Gillyflower was Diana Rigg, but she and her daughter gave solid performances.
There was definitely an eugenics vibe to Mrs. Gillyflower's pitch. It was a little creepy that she led the crowd in her sermon in the singing of "Jerusalem" (or rather
"And did those feet in ancient time"). I wonder what Britons think about that. I may be imprecise, but it seems almost like breaking out into the British equivalent of "God Bless America."
However — singing this may have been an anachronism. According to Wikipœdia and other sources, the music was composed in 1916 — 23 years after this episode's setting in 1893 Yorkshire.
When I saw that the kids would be on the next journey, I joked that it might be the second coming of "The Sarah Jane Adventures." I don't have anything against children and it could be a fun episode next week.
I also wonder if there's going to be "Greatest Show In the Galaxy" vibe at the galaxy's greatest amusement park. It probably won't — I had hoped that Sweetville might include a reference to "The Happiness Patrol," but I was generally disappointed on that count.
Where did she get him anyways? Are there more of his species?
I don't think it was made clear how the leech had survived millions of years. However, Mrs. Gillyflower had said that this specific creature had fed on the pollution created by man (presumably as part of England's Industrial Revolution) and discharged into the rivers (where she found him, apparently).