Who is Henry baker from Sherlock books?

Henry Baker is a fictional character in Sir Arthur Conan Doyle's Sherlock Holmes stories. He is the alias used by John H. Watson in the story "The Adventure of the Blue Carbuncle."

Here's the story:

* Watson finds a valuable blue carbuncle stone in the goose he buys for Christmas dinner.

* Knowing that the stone is likely stolen, he decides to return it to its rightful owner anonymously.

* To do this, he uses the alias "Henry Baker" and leaves the stone at Sherlock Holmes's lodgings.

* The story then follows Sherlock Holmes's investigation into the theft and the true identity of "Henry Baker."

So, in essence, Henry Baker is not a real person; it's simply a name used by John Watson to protect himself while trying to do the right thing.