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Helen meets Sherlock Holmes and Dr Waton
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Helen Stoner tell Mr Holmes and Dr Watson about what happened to her sister
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They go back to Helen's house to investigate
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Holmes and Watson find lots of interesting things about Helen's new room
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Holmes and Watson find a bowl full of milk and a safe
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The create a plan to catch the Culprit
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Holmes and Watson go to the pub and wait for Helen's signal
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Holmes and Watson sneak into Helen's new room
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The hear a hiss and Holmes lunges out and scares it back through the vent
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They run into Dr Roylott's room and find him dead on the floor with the swamp adder around his head
