Question

How many letters has Sir Henry Baskerville received? What is written in them?​

Answer 1

Answer:

Just twenty-four hours in London, Sir Henry has already gotten involved in the mystery—he received an anonymous note of warning when he arrived at his hotel. ... Holmes establishes that no one could have known where to reach Sir Henry, so the writer must be following him.

Answer 2

Answer:

He received two letters - one from John mortimer and the other anonymous . Both warned him about possible danger to his life at Baskerville house