The Lost Files of Sherlock Holmes: Case of the Rose Tattoo

In October of 1889, the formula for a new and extraordinarily powerful explosive disappeared from the Ministry of Defense. Sherlock's brother Mycroft, an eccentric but influential government servant, launched an official though secret inquiry into the theft, but his effort was thwarted. Just before asking Sherlock to undertake an independent investigation of the theft, Mycroft was seriously injured in an explosion that leveled the Diogenes Club.