Letter from Sherlock Holmes to Morrison, Morrison, and Dodd

BAKER STREET, Nov. 21st.
Re Vampires
SIR:
Referring to your letter of the 19th, I beg to state that I have looked into the inquiry of your client, Mr. Robert Ferguson, of Ferguson and Muirhead, tea brokers, of Mincing Lane, and that the matter has been brought to a satisfactory conclusion. With thanks for your recommendation, I am, sir,
Faithfully yours,
SHERLOCK HOLMES.