A culprit is arrested in the Jack the Ripper case which was solved by the Moriartys. Suspecting a frame-up by Arterton, Lestrade asks Sherlock for help in finding evidence that would prove it. Meanwhile, Paterson works to sneak Bonde inside the station.
Secret ledger?
Ein schwarzes Kassenbuch?
¿Un libro mayor secreto?
Un livre secret ?
Um Livro Diário secreto?
Бухгалтерии?..