An envelope arrived for Sherlock Holmes at 221B Baker Street. It had no return address, and it was an ordinary one, delivered by hand, with no postmark on it. Probably the sender had used gloves closing it, so it was useless sending it to Scotland Yard to search for fingerprints. At least, that was what Sherlock would have done if sending himself mail, knowing he would have tried to deduce something from it.
The fact that the mysterious person used all these precautions intrigued the detective. He was in fact in search of distraction, not having cases to work on at the moment.( Read more... )