時は19世紀末、大英帝国最盛期のロンドン──。 この国に根付く階級制度に辟易するモリアーティ伯爵家家長子・アルバート。孤児院から引き取ったある兄弟との出会いによって、世界を浄化するための壮大な計画が動き出す。名探偵シャーロック・ホームズの宿敵、モリアーティ教授の語られざる物語の幕が開く──!!

After successfully establishing a foothold in Durham and cleansing the city of some of its corruption, William James Moriarty sets his sights on London. To make headway there, he needs the aid of his brother Albert. But while on his way to London, William is kidnapped by a gang of criminals! Will Albert be able to save him in time?

Before he was Sherlock’s rival, Moriarty fought against the unfair class caste system in London by making sure corrupt nobility got their comeuppance. But even the most well-intentioned plans can spin out of control—will Moriarty’s dream of a more just and equal world turn him into a hero…or a monster? Just as everything appears to be going his way, Sherlock finds himself arrested for a murder he didn’t commit in a plot orchestrated by none other than Moriarty! He soon escapes police custody and sets out to clear his name. The victim, Count Drebber, wrote Sherlock’s name in blood before he died, but why? Will Sherlock be able to solve this puzzle and save himself?

悪魔の所業を裁くは“死神"── 泥沼化するアフガン戦争を終結へ導け──。MI6に課されたこの極秘任務の遂行を、モラン大佐に命じるウィリアム。世界の大局を左右する代理戦争の“黒幕"と、アフガン従軍時のモランの因縁が交錯する時、大英帝国に蔓延る闇がまたひとつ、その姿を現す!!

美貌の“あの女”は国家と探偵とを弄ぶ── 大英帝国王室で極秘裏に受け継がれて来た、重大な“禁秘”が盗み出され、行方不明となる。帝国の未来を左右するその文書の奪還へ向け、MI6が動き出す一方、シャーロックの下にはボヘミア国を巡る醜聞解決の依頼が舞い込む。2つの醜聞の裏で暗躍するのは、一人の美女──。

密会は、絢爛たる仮面舞踏会の陰で── アルバートがアイリーンとの交渉の舞台として用意したのは、バッキンガム宮殿での仮面舞踏会。そこで明かされる“禁秘"の文書の内容と、アイリーンの真の“望み"とは…!? 犯罪卿と名探偵、美貌の悪女。奇妙な三角関係が、大英帝国の醜聞を終わりへと導く──!!

Teror mengguncang Whitechapel, kawasan kumuh di London. Seorang pembunuh misterius yang menyebut dirinya Jack the Ripper melakukan pembunuhan berantai. Warga yang tak bisa hidup tenang dibawah teror akhirnya bersitegang dengan polisi yang tak bisa menangkap pembunuh ini. Siapakah sebenarnya Jack the Ripper? Tentu saja, sang Bangsawan Kriminal mengenalnya, Jack the Ripper yang asli. Tapi siapa Jack the Ripper yang membunuhi para orang tak berdosa di luar sana?

Before he was Sherlock’s rival, Moriarty fought against the unfair class caste system in London by making sure corrupt nobility got their comeuppance. But even the most well-intentioned plans can spin out of control—will Moriarty’s dream of a more just and equal world turn him into a hero…or a monster? Judgment is about to be served when William Moriarty finally comes face-to-face with the fake Jack the Ripper, who is actually a group of men who are tarnishing his childhood mentor’s good name for the sake of sowing fear and discord in London. After William and his gang dispose of the fakes, Sherlock Holmes arrives to investigate. Although he soon figures out the truth behind the Jack the Ripper killings, Scotland Yard is left in the dark. In a desperate attempt to put the situation to rest, the head of the Yard has an innocent man arrested and charged with the murders! Both Lestrade and the Moriartys are determined to get to the bottom of this false arrest before the man is hanged. And while Lestrade employs the help of Holmes once again, MI6 sends in their newest recruit…

犯罪卿の過去それは禁断の果実── “ジャック・ザ・リッパー事件”を仕組んだ張本人、大英帝国一のメディア王・ミルヴァートン。事件以来、ウィリアムを警戒しその周辺を探っていた彼は、貧民街の“とある少年”が貴族相手に起こした、“裁判”へとたどり着く…。ウィリアムとルイスの過去の記録が今、解き明かされる──。

Before he was Sherlock’s rival, Moriarty fought against the unfair class caste system in London by making sure corrupt nobility got their comeuppance. But even the most well-intentioned plans can spin out of control—will Moriarty’s dream of a more just and equal world turn him into a hero…or a monster? Adam Whiteley, member of the House of Commons, is willing to put his life on the line to fight for equality for the common people of Great Britain. William Moriarty pegs him as a potential ally and gives Whiteley a powerful bargaining chip he can use against the House of Lords—evidence of their wrongdoings. Faced with threats on his life, Whiteley must decide how to use this information. Will his ideals lead him down the path of an angel…or a devil?!