Mrs Hudson and the Samarkand Conspiracy

It's summer in London and things are quiet. But while Holmes and Watson chafe at their inactivity a train carrying a vital encoded communication is entering a tunnel in an obscure region of the Balkans - never to be seen again. The case of the disappearing train is only the beginning of the nation’s difficulties. The missing message must be found and decoded and a diplomat’s wife must be rescued from the clutches of a pernicious blackmailer. The nation is in danger and if a diplomatic scandal of disastrous proportions is to be avoided Sherlock Holmes’ brilliance may not be enough…