in·te·ri·or
/ˌinˈtirēər/
Adjective
situated within or inside; relating to the inside; inner.
"the interior lighting is not adequate"
Nshaan ahuaki uwhwkoqooaoaoqoq hshd xhs
In the fourth episode, the Servant actually eagerly answers to Oedipus's questioning about his heritage - that he was abandoned by his parents and that he is that same baby he had been asking around about.
First, Sherlock realized it was weird that Mr. Wilson's assistant pushed for him to join the league. Then he realized when the league accepted Wilson so easily, considering he wasn't married and owned a business. Also, the job itself was very peculiar. Sherlock also saw the knees of Wilson's assistant's pants, they were worn indicating he had been on his hands and knees.
Thats all i know^_^