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‘The Terror of Blue John Gap’ is a short story written by Sir Arthur Conan Doyle, first published ∈1912. He is best known as the creator of the great fictional detective, Sherlock Holmes. This story is set ∈ the English county of Derbyshire, ∈ the Peak District, near the village of Castleton. The main action takes place ∈ the old, disused Blue John mines ∈ the area. Blue John Stone is a rare, semi-precious mineral.
The story is as a series of diary entries, written by Dr James Hardcastle and found after his disappearance. Armitage, a local man, who introduces the story, describes Hardcastle as a rational and scientific man, “absolutely devoid of imagination, and most unlikely to invent any abnormal series of events”. Dr Hardcastle has been sent to the country to recover from tuberculosis. He is staying on a farm, near the town of Castleton. He spends his time walking ∈ the hills, and he becomes interested ∈ the old disused mines and caves under the hills. Armitage tells Dr Hardcastle the legend of Blue John Gap.
Local people say there is a monster that lives ∈ the underground caves and comes out at night to steal sheep. Armitage says he has heard the monster. Dr Hardcastle is surprised by how superstitious the locals are, until he himself hears the strange noise, too. He decides to explore the cave when he is feeling stronger. Dr Hardcastle starts to explore the entrance of the cave, and wonders if it is possible that some kind of strange creature lives ∈ the underground caves. While ∈ the caves, his candle goes out and he is \left \in the dark. He hears strange noises and feels the presence of the monster. He immediately runs out of the caves, frightened by his experience, and then he decides to tell someone about what happened. He goes to visit a local doctor. The doctor refers him to a specialist, but Dr Hardcastle chooses not to talk to him. At the same time, sheep go missing on the hills near Blue John Gap. When Armitage also goes missing, Dr Hardcastle decides to tell the police about his experience and yet they laugh at him, so Dr Hardcastle decides to face the monster on his own. He buys a lantern and a rifle, and leaves a note ∈ his bedroom, telling his hosts to look for him ∈Blue John Gap if he goes missing.
(Available at: https://www.onestopenglish.com/ Accessed ∈July 2019.)
At the beginning of the text (lines 7 – 8), ∈ this sentence – “Armitage, a local man, who introduces the story, describes Hardcastle as a rational and scientific man.” – the pronoun ‘who’
