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.
I dipped into his office and found it.
schlich ich mich in sein Büro
und entdeckte es.
yo entré a escondidas
en su oficina y lo encontré.
j’ai trouvé le livre dans son bureau.
eu entrei no escritório
dele e achei isso.
я прокрался в его офис и нашёл их.