One day a gentleman called, Mortimer, came over to Sherlock.
I will expect the case!
There is a hound in Devonshire and old Sir Charles is dead!
The one from Hugo Baskerville?
Sherlock exepted the case, but decided he was too busy in London so he sent me to Devonshire to be his eyes and ears.
I'm Sir Henry Baskerville and there's a misterious man after me.
In Devonshire I see that there is a state of emergency: armed guards are looking for an escaped convict. In the house I overthought the suspects of beying the misterious man.
Mr and Mrs Barrymore, the domestic help, and Mr Jack Stapleton and his sister Beryl. The Stapletons were Baskerville's neighbours.
Then I see a lonely figure surveying the moors, which appears to be Sherlock. He tells me that he found out that Mr Stapleton will inherit the fortune of Baskerville so he caused a heart, with his furious dog, with the intension to kill him.
By using Sir Henry as bait we could catch Mr Stapleton red-handed. Unfortunately, he drowned running away from his huge dog. Later it turned out that Beryl Stapleton was Stapleton's wife.
Back at home Sherlock explains the lose ends and than the case is close!