I’m sure you didn’t read carefully my article. Study it!. Some of you are a little bit confused.
Here it is the solution. The two letters left are: B A
Why? The answer is simple. Holmes and Professor Moriarty are enemies. B and A are the letters that complete “Baker Street”. As you know Holmes lives at 221b Baker Street. Probably, Moriarty was planning something against Holmes!
I’m looking forward to hearing for you