Moriarty embarks upon what may be the crime of the century, but breaking into H.M.P. Pentonville, the Tower of London, and the Bank of England is only the start. Sherlock must discover what his greatest foe is up to and stop him, but his reputation, and even his life, come under threat.moreless
Henry Knight claims that his father was killed by a monstrous creature at large in Dartmoor, and asks Sherlock for help. When he and John Watson arrive on the moors to investigate, they discover a top-secret army base may be connected to the death.
The monarchy is threatened by some the emergence of some compromising photographs. Sherlock is soon on the case, and uncovers links with international terrorism and corruption in the British government. But to avert a royal scandal he must best Irene Adler, a woman every bit as brilliant as he is.