I looked at the small wrapped parcel in my hands in some surprise. "When did this come?"

Sherlock Holmes looked up from his chemical research. "Some time after you left. There isn't a return address or name."

"So you can't deduce who it is from?"

"No."

"Oh."

I turned the package over in my arms. There was a slight cut in paper, showing that the user had never done such a task as wrapping a gift before, an inspection of the lower side showed me a brown stain, indicating that person had been smoking furiously as he had done this. Above all, the rather shabby packing showed that it had been done a trifle hurriedly.

I smiled.

"Thank you for remembering my birthday Holmes."

A splutter from the behind told me my guess had been correct.

"I-I beg your pardon, my dear Watson?"

I shook my head despairingly.

"Of course you do. I wasn't born yesterday,Holmes."