Daughter of Sherlock Holmes mysteries

"A continuation of USA TODAY bestselling author Leonard Goldberg's The Daughter of Sherlock Holmes, A Study in Treason is a new intriguing locked room mystery for Joanna and the Watsons to solve. The following case has not previously been disclosed to the public due to the sensitive information on foreign affairs. All those involved were previously bound by the Official Secrets Act. With the passage of time and the onset of the Great War, these impediments...

"In the west end of London, an apparently crazed individual is on the loose, breaking into art galleries and private homes to slash valuable paintings of women. Despite Scotland Yard's best efforts, the criminal remains at large and continues on his destructive path. When Joanna and the Watsons are called in to solve the mystery, they soon discover that although the canvases have been slashed, their backings remain pristine, with no cuts or scratches....

"During a critical stage in World War One, the Governor-General of South Africa journeys to London for a meeting of The Imperial War Conference. Days prior to the conference, the Governor-General is scheduled to have an audience at Buckingham Palace at which time a most precious blue diamond will be presented to King Edward as a symbolic gesture of the colonies' resolute and never-ending allegiance to England. The flawless blue diamond, with its magnificent...