'And what about my letter?' I asked. 'Have you read them?'
'yes, I have,' Holmes replied. 'They were sent to me from London. But I have not read you report of last night. Come. Tell me about it as we walk to Baskerville Hall.
He left the farmhouse and I walked quickly after him. the sun had gone down and it was getting dark. A thick white mist was rising from the moor.
'You are a good detective,' said Holmes. 'Tell me, how did you find me? How did you know I was at High tor Farm?'