Mycroft Holmes takes the unusual step of visiting his brother Sherlock and Dr. Watson at 221B Baker Street, to summon them to an important meeting at the Diogenes Club. The meeting will involve the Prime Minister and other senior ministers, and concern a planned conference with important American businessmen--for highly sensitive reasons.
At the meeting at the Diogenes Club, they learn the Prime Minister believes word has leaked and there may be an attack planned on this conference. It would be a major embarrassment to the government--and as events unfold, Holmes and Watson become increasingly irked that avoiding embarrassment appears to be the biggest consideration. Little of Holmes's security advice is headed; his brief is simply to prevent the attack while his advice is ignored.









