Mary Russell's War and Other Stories of Suspense by Laurie R. King, 300 pages

With this collection, nine previously published short stories and one never-before-seen Sherlock Holmes mystery are brought together for the first time. Following an "Appreciation" by noted Sherlockian Leslie S. Klinger, Laurie R. King blends vivid historical settings with narrative sleight-of-hand, from a novella composed of Mary Russell's teenage diaries to the story of how, in her nineties, Miss Russell came to send her Memoirs to Laurie R. King, and from Mrs. Hudson's own investigation to a tale of young Russell's beloved Uncle Jake-and, a Christmas investigation by Sherlock Holmes and his very young assistant.
I'm a big fan of the Mary Russell books, so I enjoyed getting to see her and Sherlock's first meeting through his eyes, the story of their wedding, and her early days.