Milverton blackmails Mary, exploiting her dalliance in antigovernment activities as a student. Sherlock decides to sneak into Milverton's estate to steal his evidence, but even that act was anticipated. Sherlock finds that he is not the only trespasser.
This man is the Lord of Crime--
Professor William James Moriarty!
Ese hombre es el Amo del Crimen…
Cet homme est le prince du crime,
Este homem é o Lorde do Crime.
Перед тобой лорд преступности,