This is book number 6 in the The Daughter of Sherlock Holmes Mysteries series.
The fate of the allied forces lies in the hands of Joanna and the Watsons in the next Daughter of Sherlock Holmes mystery from USA Today bestselling author Leonard Goldberg.
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 luster, weighs nearly 3000 carats which renders it one of the world’s largest and most valuable gems. On the Governor-General’s arrival, he is ensconced at the fashionable Windsor Hotel under the tightest security, with his entire entourage and formidable security team occupying the entire penthouse floor. All entrances and exits are locked down and closely guarded, and no one is allowed entrance after 6 PM.
Despite the extreme precautions, the famous diamond is stolen from the Governor-General’s suite in the middle of the night, with no clues left behind. With Scotland Yard baffled, Joanna and the Watsons are called in to investigate the theft and it becomes clear that the crime is not simply the work of a master thief, but one that could greatly aid the Germans and turn the tide of war in their favor. Time is of the essence and the blue diamond must be recovered before it begins its travels which could cause irreparable damage to the allied war plans.
Praise for The Blue Diamond:
"Readers will enjoy the many references to Sherlock Holmes’s cases...also a pleasure is the relationship between Joanna and John, she a wily sleuth and he an adoring supporter of her eccentricities. For fans of the great detective, of course, but also those who enjoy tales of wartime espionage." —First Clue newsletter
Praise for the Daughter of Sherlock Holmes Series:
“Compelling, with clever revelations and pithy dialogue—a worthy successor to Conan Doyle’s original” —Charleston Post and Courier
"Goldberg's Sherlock Holmes pastiche is pitch-perfect..." —Library Journal
“Avid Sherlockians will be delighted with the many echoes of the original Holmes canon.” —Publishers Weekly
"Fans of the original mysteries will get a chuckle out of the antic language, and there is a mercurial Mary Poppins appeal to this not-to-be-trifled-with heroine that will appeal to fans beyond Baker Street." —Booklist
"Holmes lovers will enjoy the intricate Sherlockian reasoning Joanna and Johnny bring to the puzzle." —Publishers Weekly on The Art of Deception
"Fans of all things Sherlock-ian will delight in Joanna, so like her father and already training her schoolboy son, Johnny, in the methods that have solved so many cases like this exceptionally tricky one." —Kirkus Reviews on The Disappearance of Alistair Ainsworth
"Suspenseful and entertaining, with many twists and turns....This is one of the best Sherlock Holmes series since Laurie R. King’s Mary Russell books." —Historical Novel Society