six o'clock
There is n't a house in this town that , after a cash transaction of that kind , conducted through Bruce , Watkins , Brownleigh & Co. , would n't send its own soul up on approval to a nice , clean-cut member of the British aristocracy like Sir Henry Darlington . We 're on the trail , Jenkins -- we 're on the trail . Here 's a letter from Bar , LeDuc & Co. -- let 's see what light that sheds on the matter . '' Holmes took a letter from an envelope and read , rapidly : Sir Henry Darlington -- care of Bruce , Watkins and so forth -- dear Sir Henry -- We are having some difficulty matching the pearls -- they are of unusual quality , but we hope to have the necklace ready for delivery as requested on Wednesday afternoon at the office of Messrs. Bruce , Watkins and so forth , between five and six o'clock . Trusting the delay will not -- and so forth -- and hoping to merit a continuance of your valued favors , we beg to remain , and so forth , and so forth . `` That 's it , '' said Holmes . `` It 's a necklace that Mr. Cato is bringing up to Sir Henry Darlington -- and , once in his possession -- it 's Sir Henry for some place on one of these folders . ''