繼《福爾摩斯先生收》掀起名偵探熱潮後
倫敦貝格街221B再度收到詭異信箋
這回居然是一封來自宿敵的「穿越」信──

親愛的福爾摩斯先生，我不會上當的。
你從雷清貝瀑布掉下來，還能活著，我一點也不意外……
我知道你現在的身分是偽裝的。我不會受騙。
我一定會報仇，我一定會將你最珍愛的東西從你身邊奪走。

                                                               你謙遜的敵人 莫里亞提 敬上

一封署名莫里亞提的來信，靜靜躺在已成律師事務所的福爾摩斯故居，等著掀起倫敦城最大的恐慌。

零犯罪紀錄的英國古典計程車在短短兩個月內，接連涉及七起暴力案，最嚴重的一件是司機被控搶劫謀殺美國觀光客。為司機辯護的律師雷基，完全沒想到一封寄給福爾摩斯的信居然送來了逆轉案情的關鍵線索，不過，更令他毛骨悚然的是，莫里亞提的威脅信竟然成真。

敵人開始行動了，但是不論是最新的一樁謀殺案、古典計程車司機橋上棄屍、獲釋的司機成了死屍，這一切雷基都無暇思考，因為敵人邪惡陰狠的手正緩緩伸向他最珍愛的……

對一個人最大的傷害，不是殺了他，而是奪走他所珍愛的


"A delightful romp...The last third of the novel is one of the finest, scariest sequences in current crime fiction... For anglophiles, crime-o-philes, and all fans of wonderful writing." --Booklist (starred)

When brothers Reggie and Nigel Heath choose 221B Baker Street as the location for their law office, they don't realize that their new office space comes with one huge stipulation; namely, they must answer the letters sent to Sherlock Holmes, the most famous resident of that address.

While Reggie is working on a new case involving one of London's Black Cab drivers, the letters to Sherlock Holmes are piling up. There's even one from someone who claims to be the descendent of Professor James Moriarty.

With a case that would have puzzled even Sherlock himself, The Brothers of Baker Street is sure to please mystery fans, whatever their address.