Did he take a holiday?" I asked
"No," said Dr Mortimer. "He planned to go to London the following Friday. But, on the Thursday evening, he went for a walk on the edge of the moor. And he never returned.'
"How did he die?" I asked
"He died of a heart attack, answered Dr Mortimer. "His servant came to fetch me. I found Sir Charles near the house, on the edge of the moor. He was running away from something when he died. I am sure of that. I think he was terrified of something.
"Terrified?" asked Holmes. 'What was he running away from?